21087515020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:921

約数の個数: 288

約数和(自身を含む): 57118150656

約数和(自身を除く): 36030635636

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 31, 34, 44, 52, 55, 62, 65, 68, 85, 110, 124, 130, 143, 155, 170, 187, 220, 221, 260, 286, 289, 310, 340, 341, 374, 403, 442, 527, 572, 578, 620, 682, 715, 748, 806, 823, 884, 935, 1054, 1105, 1156, 1364, 1430, 1445, 1612, 1646, 1705, 1870, 2015, 2108, 2210, 2431, 2635, 2860, 2890, 3179, 3292, 3410, 3740, 3757, 4030, 4115, 4420, 4433, 4862, 5270, 5780, 5797, 6358, 6820, 6851, 7514, 8060, 8230, 8866, 8959, 9053, 9724, 10540, 10699, 11594, 12155, 12716, 13702, 13991, 15028, 15895, 16460, 17732, 17918, 18106, 18785, 21398, 22165, 23188, 24310, 25513, 27404, 27982, 28985, 31790, 34255, 35836, 36212, 37570, 41327, 42796, 44330, 44795, 45265, 48620, 51026, 53495, 55964, 57970, 63580, 68510, 69955, 75140, 75361, 82654, 88660, 89590, 90530, 98549, 102052, 106990, 115940, 116467, 117689, 127565, 137020, 139910, 150722, 153901, 165308, 179180, 181060, 181883, 197098, 206635, 213980, 232934, 235378, 237847, 255130, 279820, 280643, 301444, 307802, 331669, 363766, 376805, 394196, 413270, 433721, 465868, 470756, 475694, 492745, 510260, 561286, 582335, 588445, 615604, 663338, 727532, 753610, 769505, 826540, 867442, 909415, 951388, 985490, 1122572, 1164670, 1176890, 1189235, 1281137, 1326676, 1403215, 1507220, 1539010, 1658345, 1734884, 1818830, 1970980, 2000713, 2168605, 2329340, 2353780, 2378470, 2562274, 2616317, 2806430, 3078020, 3092011, 3316690, 3637660, 3648359, 4001426, 4337210, 4756940, 4770931, 5124548, 5232634, 5612860, 5638373, 6184022, 6405685, 6633380, 7296718, 7373257, 8002852, 8674420, 9541862, 10003565, 10465268, 11276746, 12368044, 12811370, 13081585, 14593436, 14746514, 15460055, 18241795, 19083724, 20007130, 22553492, 23854655, 25622740, 26163170, 28191865, 29493028, 30920110, 34012121, 36483590, 36866285, 40014260, 47709310, 52326340, 56383730, 61840220, 62022103, 68024242, 72967180, 73732570, 81105827, 95418620, 95852341, 112767460, 124044206, 136048484, 147465140, 162211654, 170060605, 191704682, 248088412, 310110515, 324423308, 340121210, 383409364, 405529135, 479261705, 620221030, 680242420, 811058270, 958523410, 1054375751, 1240442060, 1622116540, 1917046820, 2108751502, 4217503004, 5271878755, 10543757510, 21087515020]

約数ペア:

[(1, 21087515020), (2, 10543757510), (4, 5271878755), (5, 4217503004), (10, 2108751502), (11, 1917046820), (13, 1622116540), (17, 1240442060), (20, 1054375751), (22, 958523410), (26, 811058270), (31, 680242420), (34, 620221030), (44, 479261705), (52, 405529135), (55, 383409364), (62, 340121210), (65, 324423308), (68, 310110515), (85, 248088412), (110, 191704682), (124, 170060605), (130, 162211654), (143, 147465140), (155, 136048484), (170, 124044206), (187, 112767460), (220, 95852341), (221, 95418620), (260, 81105827), (286, 73732570), (289, 72967180), (310, 68024242), (340, 62022103), (341, 61840220), (374, 56383730), (403, 52326340), (442, 47709310), (527, 40014260), (572, 36866285), (578, 36483590), (620, 34012121), (682, 30920110), (715, 29493028), (748, 28191865), (806, 26163170), (823, 25622740), (884, 23854655), (935, 22553492), (1054, 20007130), (1105, 19083724), (1156, 18241795), (1364, 15460055), (1430, 14746514), (1445, 14593436), (1612, 13081585), (1646, 12811370), (1705, 12368044), (1870, 11276746), (2015, 10465268), (2108, 10003565), (2210, 9541862), (2431, 8674420), (2635, 8002852), (2860, 7373257), (2890, 7296718), (3179, 6633380), (3292, 6405685), (3410, 6184022), (3740, 5638373), (3757, 5612860), (4030, 5232634), (4115, 5124548), (4420, 4770931), (4433, 4756940), (4862, 4337210), (5270, 4001426), (5780, 3648359), (5797, 3637660), (6358, 3316690), (6820, 3092011), (6851, 3078020), (7514, 2806430), (8060, 2616317), (8230, 2562274), (8866, 2378470), (8959, 2353780), (9053, 2329340), (9724, 2168605), (10540, 2000713), (10699, 1970980), (11594, 1818830), (12155, 1734884), (12716, 1658345), (13702, 1539010), (13991, 1507220), (15028, 1403215), (15895, 1326676), (16460, 1281137), (17732, 1189235), (17918, 1176890), (18106, 1164670), (18785, 1122572), (21398, 985490), (22165, 951388), (23188, 909415), (24310, 867442), (25513, 826540), (27404, 769505), (27982, 753610), (28985, 727532), (31790, 663338), (34255, 615604), (35836, 588445), (36212, 582335), (37570, 561286), (41327, 510260), (42796, 492745), (44330, 475694), (44795, 470756), (45265, 465868), (48620, 433721), (51026, 413270), (53495, 394196), (55964, 376805), (57970, 363766), (63580, 331669), (68510, 307802), (69955, 301444), (75140, 280643), (75361, 279820), (82654, 255130), (88660, 237847), (89590, 235378), (90530, 232934), (98549, 213980), (102052, 206635), (106990, 197098), (115940, 181883), (116467, 181060), (117689, 179180), (127565, 165308), (137020, 153901), (139910, 150722)]