256948432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 551964672

約数和(自身を除く): 295016240

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 71, 104, 127, 137, 142, 208, 254, 274, 284, 508, 548, 568, 923, 1016, 1096, 1136, 1651, 1781, 1846, 2032, 2192, 3302, 3562, 3692, 6604, 7124, 7384, 9017, 9727, 13208, 14248, 14768, 17399, 18034, 19454, 26416, 28496, 34798, 36068, 38908, 69596, 72136, 77816, 117221, 126451, 139192, 144272, 155632, 226187, 234442, 252902, 278384, 452374, 468884, 505804, 904748, 937768, 1011608, 1235329, 1809496, 1875536, 2023216, 2470658, 3618992, 4941316, 9882632, 16059277, 19765264, 32118554, 64237108, 128474216, 256948432]

約数ペア:

[(1, 256948432), (2, 128474216), (4, 64237108), (8, 32118554), (13, 19765264), (16, 16059277), (26, 9882632), (52, 4941316), (71, 3618992), (104, 2470658), (127, 2023216), (137, 1875536), (142, 1809496), (208, 1235329), (254, 1011608), (274, 937768), (284, 904748), (508, 505804), (548, 468884), (568, 452374), (923, 278384), (1016, 252902), (1096, 234442), (1136, 226187), (1651, 155632), (1781, 144272), (1846, 139192), (2032, 126451), (2192, 117221), (3302, 77816), (3562, 72136), (3692, 69596), (6604, 38908), (7124, 36068), (7384, 34798), (9017, 28496), (9727, 26416), (13208, 19454), (14248, 18034), (14768, 17399)]