20989958640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{5521}}^1$

素因数の和:5648

約数の個数: 320

約数和(自身を含む): 77828923392

約数和(自身を除く): 56838964752

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 73, 80, 84, 93, 105, 112, 120, 124, 140, 146, 155, 168, 186, 210, 217, 219, 240, 248, 280, 292, 310, 336, 365, 372, 420, 434, 438, 465, 496, 511, 560, 584, 620, 651, 730, 744, 840, 868, 876, 930, 1022, 1085, 1095, 1168, 1240, 1302, 1460, 1488, 1533, 1680, 1736, 1752, 1860, 2044, 2170, 2190, 2263, 2480, 2555, 2604, 2920, 3066, 3255, 3472, 3504, 3720, 4088, 4340, 4380, 4526, 5110, 5208, 5521, 5840, 6132, 6510, 6789, 7440, 7665, 8176, 8680, 8760, 9052, 10220, 10416, 11042, 11315, 12264, 13020, 13578, 15330, 15841, 16563, 17360, 17520, 18104, 20440, 22084, 22630, 24528, 26040, 27156, 27605, 30660, 31682, 33126, 33945, 36208, 38647, 40880, 44168, 45260, 47523, 52080, 54312, 55210, 61320, 63364, 66252, 67890, 77294, 79205, 82815, 88336, 90520, 95046, 108624, 110420, 115941, 122640, 126728, 132504, 135780, 154588, 158410, 165630, 171151, 181040, 190092, 193235, 220840, 231882, 237615, 253456, 265008, 271560, 309176, 316820, 331260, 342302, 380184, 386470, 403033, 441680, 463764, 475230, 513453, 543120, 579705, 618352, 633640, 662520, 684604, 760368, 772940, 806066, 855755, 927528, 950460, 1026906, 1159410, 1198057, 1209099, 1267280, 1325040, 1369208, 1545880, 1612132, 1711510, 1855056, 1900920, 2015165, 2053812, 2318820, 2396114, 2418198, 2567265, 2738416, 2821231, 3091760, 3224264, 3423020, 3594171, 3801840, 4030330, 4107624, 4637640, 4792228, 4836396, 5134530, 5642462, 5990285, 6045495, 6448528, 6846040, 7188342, 8060660, 8215248, 8463693, 9275280, 9584456, 9672792, 10269060, 11284924, 11980570, 12090990, 12494023, 13692080, 14106155, 14376684, 16121320, 16927386, 17970855, 19168912, 19345584, 20538120, 22569848, 23961140, 24181980, 24988046, 28212310, 28753368, 32242640, 33854772, 35941710, 37482069, 41076240, 42318465, 45139696, 47922280, 48363960, 49976092, 56424620, 57506736, 62470115, 67709544, 71883420, 74964138, 84636930, 87458161, 95844560, 96727920, 99952184, 112849240, 124940230, 135419088, 143766840, 149928276, 169273860, 174916322, 187410345, 199904368, 225698480, 249880460, 262374483, 287533680, 299856552, 338547720, 349832644, 374820690, 437290805, 499760920, 524748966, 599713104, 677095440, 699665288, 749641380, 874581610, 999521840, 1049497932, 1311872415, 1399330576, 1499282760, 1749163220, 2098995864, 2623744830, 2998565520, 3498326440, 4197991728, 5247489660, 6996652880, 10494979320, 20989958640]

約数ペア:

[(1, 20989958640), (2, 10494979320), (3, 6996652880), (4, 5247489660), (5, 4197991728), (6, 3498326440), (7, 2998565520), (8, 2623744830), (10, 2098995864), (12, 1749163220), (14, 1499282760), (15, 1399330576), (16, 1311872415), (20, 1049497932), (21, 999521840), (24, 874581610), (28, 749641380), (30, 699665288), (31, 677095440), (35, 599713104), (40, 524748966), (42, 499760920), (48, 437290805), (56, 374820690), (60, 349832644), (62, 338547720), (70, 299856552), (73, 287533680), (80, 262374483), (84, 249880460), (93, 225698480), (105, 199904368), (112, 187410345), (120, 174916322), (124, 169273860), (140, 149928276), (146, 143766840), (155, 135419088), (168, 124940230), (186, 112849240), (210, 99952184), (217, 96727920), (219, 95844560), (240, 87458161), (248, 84636930), (280, 74964138), (292, 71883420), (310, 67709544), (336, 62470115), (365, 57506736), (372, 56424620), (420, 49976092), (434, 48363960), (438, 47922280), (465, 45139696), (496, 42318465), (511, 41076240), (560, 37482069), (584, 35941710), (620, 33854772), (651, 32242640), (730, 28753368), (744, 28212310), (840, 24988046), (868, 24181980), (876, 23961140), (930, 22569848), (1022, 20538120), (1085, 19345584), (1095, 19168912), (1168, 17970855), (1240, 16927386), (1302, 16121320), (1460, 14376684), (1488, 14106155), (1533, 13692080), (1680, 12494023), (1736, 12090990), (1752, 11980570), (1860, 11284924), (2044, 10269060), (2170, 9672792), (2190, 9584456), (2263, 9275280), (2480, 8463693), (2555, 8215248), (2604, 8060660), (2920, 7188342), (3066, 6846040), (3255, 6448528), (3472, 6045495), (3504, 5990285), (3720, 5642462), (4088, 5134530), (4340, 4836396), (4380, 4792228), (4526, 4637640), (5110, 4107624), (5208, 4030330), (5521, 3801840), (5840, 3594171), (6132, 3423020), (6510, 3224264), (6789, 3091760), (7440, 2821231), (7665, 2738416), (8176, 2567265), (8680, 2418198), (8760, 2396114), (9052, 2318820), (10220, 2053812), (10416, 2015165), (11042, 1900920), (11315, 1855056), (12264, 1711510), (13020, 1612132), (13578, 1545880), (15330, 1369208), (15841, 1325040), (16563, 1267280), (17360, 1209099), (17520, 1198057), (18104, 1159410), (20440, 1026906), (22084, 950460), (22630, 927528), (24528, 855755), (26040, 806066), (27156, 772940), (27605, 760368), (30660, 684604), (31682, 662520), (33126, 633640), (33945, 618352), (36208, 579705), (38647, 543120), (40880, 513453), (44168, 475230), (45260, 463764), (47523, 441680), (52080, 403033), (54312, 386470), (55210, 380184), (61320, 342302), (63364, 331260), (66252, 316820), (67890, 309176), (77294, 271560), (79205, 265008), (82815, 253456), (88336, 237615), (90520, 231882), (95046, 220840), (108624, 193235), (110420, 190092), (115941, 181040), (122640, 171151), (126728, 165630), (132504, 158410), (135780, 154588)]