20120100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:115

約数の個数: 288

約数和(自身を含む): 79328256

約数和(自身を除く): 59208156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 25, 26, 28, 30, 33, 35, 39, 42, 44, 50, 52, 55, 60, 65, 66, 67, 70, 75, 77, 78, 84, 91, 100, 105, 110, 130, 132, 134, 140, 143, 150, 154, 156, 165, 175, 182, 195, 201, 210, 220, 231, 260, 268, 273, 275, 286, 300, 308, 325, 330, 335, 350, 364, 385, 390, 402, 420, 429, 455, 462, 469, 525, 546, 550, 572, 650, 660, 670, 700, 715, 737, 770, 780, 804, 825, 858, 871, 910, 924, 938, 975, 1001, 1005, 1050, 1092, 1100, 1155, 1300, 1340, 1365, 1407, 1430, 1474, 1540, 1650, 1675, 1716, 1742, 1820, 1876, 1925, 1950, 2002, 2010, 2100, 2145, 2211, 2275, 2310, 2345, 2613, 2730, 2814, 2860, 2948, 3003, 3300, 3350, 3484, 3575, 3685, 3850, 3900, 4004, 4020, 4290, 4355, 4422, 4550, 4620, 4690, 5005, 5025, 5159, 5226, 5460, 5628, 5775, 6006, 6097, 6700, 6825, 7035, 7150, 7370, 7700, 8580, 8710, 8844, 9100, 9380, 9581, 10010, 10050, 10318, 10452, 10725, 11055, 11550, 11725, 12012, 12194, 13065, 13650, 14070, 14300, 14740, 15015, 15477, 17420, 18291, 18425, 19162, 20020, 20100, 20636, 21450, 21775, 22110, 23100, 23450, 24388, 25025, 25795, 26130, 27300, 28140, 28743, 30030, 30485, 30954, 35175, 36582, 36850, 38324, 42900, 43550, 44220, 46900, 47905, 50050, 51590, 52260, 55275, 57486, 60060, 60970, 61908, 65325, 67067, 70350, 73164, 73700, 75075, 77385, 87100, 91455, 95810, 100100, 103180, 110550, 114972, 121940, 128975, 130650, 134134, 140700, 143715, 150150, 152425, 154770, 182910, 191620, 201201, 221100, 239525, 257950, 261300, 268268, 287430, 300300, 304850, 309540, 335335, 365820, 386925, 402402, 457275, 479050, 515900, 574860, 609700, 670670, 718575, 773850, 804804, 914550, 958100, 1006005, 1341340, 1437150, 1547700, 1676675, 1829100, 2012010, 2874300, 3353350, 4024020, 5030025, 6706700, 10060050, 20120100]

約数ペア:

[(1, 20120100), (2, 10060050), (3, 6706700), (4, 5030025), (5, 4024020), (6, 3353350), (7, 2874300), (10, 2012010), (11, 1829100), (12, 1676675), (13, 1547700), (14, 1437150), (15, 1341340), (20, 1006005), (21, 958100), (22, 914550), (25, 804804), (26, 773850), (28, 718575), (30, 670670), (33, 609700), (35, 574860), (39, 515900), (42, 479050), (44, 457275), (50, 402402), (52, 386925), (55, 365820), (60, 335335), (65, 309540), (66, 304850), (67, 300300), (70, 287430), (75, 268268), (77, 261300), (78, 257950), (84, 239525), (91, 221100), (100, 201201), (105, 191620), (110, 182910), (130, 154770), (132, 152425), (134, 150150), (140, 143715), (143, 140700), (150, 134134), (154, 130650), (156, 128975), (165, 121940), (175, 114972), (182, 110550), (195, 103180), (201, 100100), (210, 95810), (220, 91455), (231, 87100), (260, 77385), (268, 75075), (273, 73700), (275, 73164), (286, 70350), (300, 67067), (308, 65325), (325, 61908), (330, 60970), (335, 60060), (350, 57486), (364, 55275), (385, 52260), (390, 51590), (402, 50050), (420, 47905), (429, 46900), (455, 44220), (462, 43550), (469, 42900), (525, 38324), (546, 36850), (550, 36582), (572, 35175), (650, 30954), (660, 30485), (670, 30030), (700, 28743), (715, 28140), (737, 27300), (770, 26130), (780, 25795), (804, 25025), (825, 24388), (858, 23450), (871, 23100), (910, 22110), (924, 21775), (938, 21450), (975, 20636), (1001, 20100), (1005, 20020), (1050, 19162), (1092, 18425), (1100, 18291), (1155, 17420), (1300, 15477), (1340, 15015), (1365, 14740), (1407, 14300), (1430, 14070), (1474, 13650), (1540, 13065), (1650, 12194), (1675, 12012), (1716, 11725), (1742, 11550), (1820, 11055), (1876, 10725), (1925, 10452), (1950, 10318), (2002, 10050), (2010, 10010), (2100, 9581), (2145, 9380), (2211, 9100), (2275, 8844), (2310, 8710), (2345, 8580), (2613, 7700), (2730, 7370), (2814, 7150), (2860, 7035), (2948, 6825), (3003, 6700), (3300, 6097), (3350, 6006), (3484, 5775), (3575, 5628), (3685, 5460), (3850, 5226), (3900, 5159), (4004, 5025), (4020, 5005), (4290, 4690), (4355, 4620), (4422, 4550)]