263787720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4423}}^1$

素因数の和:4515

約数の個数: 128

約数和(自身を含む): 917360640

約数和(自身を除く): 653572920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3976, 4260, 4423, 4970, 5964, 7455, 8520, 8846, 9940, 11928, 13269, 14910, 17692, 19880, 22115, 26538, 29820, 30961, 35384, 44230, 53076, 59640, 61922, 66345, 88460, 92883, 106152, 123844, 132690, 154805, 176920, 185766, 247688, 265380, 309610, 314033, 371532, 464415, 530760, 619220, 628066, 743064, 928830, 942099, 1238440, 1256132, 1570165, 1857660, 1884198, 2198231, 2512264, 3140330, 3715320, 3768396, 4396462, 4710495, 6280660, 6594693, 7536792, 8792924, 9420990, 10991155, 12561320, 13189386, 17585848, 18841980, 21982310, 26378772, 32973465, 37683960, 43964620, 52757544, 65946930, 87929240, 131893860, 263787720]

約数ペア:

[(1, 263787720), (2, 131893860), (3, 87929240), (4, 65946930), (5, 52757544), (6, 43964620), (7, 37683960), (8, 32973465), (10, 26378772), (12, 21982310), (14, 18841980), (15, 17585848), (20, 13189386), (21, 12561320), (24, 10991155), (28, 9420990), (30, 8792924), (35, 7536792), (40, 6594693), (42, 6280660), (56, 4710495), (60, 4396462), (70, 3768396), (71, 3715320), (84, 3140330), (105, 2512264), (120, 2198231), (140, 1884198), (142, 1857660), (168, 1570165), (210, 1256132), (213, 1238440), (280, 942099), (284, 928830), (355, 743064), (420, 628066), (426, 619220), (497, 530760), (568, 464415), (710, 371532), (840, 314033), (852, 309610), (994, 265380), (1065, 247688), (1420, 185766), (1491, 176920), (1704, 154805), (1988, 132690), (2130, 123844), (2485, 106152), (2840, 92883), (2982, 88460), (3976, 66345), (4260, 61922), (4423, 59640), (4970, 53076), (5964, 44230), (7455, 35384), (8520, 30961), (8846, 29820), (9940, 26538), (11928, 22115), (13269, 19880), (14910, 17692)]