256908808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{367}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 534159360

約数和(自身を除く): 277250552

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 127, 212, 254, 367, 424, 508, 689, 734, 1016, 1378, 1468, 1651, 2756, 2936, 3302, 4771, 5512, 6604, 6731, 9542, 13208, 13462, 19084, 19451, 26924, 38168, 38902, 46609, 53848, 77804, 87503, 93218, 155608, 175006, 186436, 252863, 350012, 372872, 505726, 605917, 700024, 1011452, 1211834, 2022904, 2423668, 2470277, 4847336, 4940554, 9881108, 19762216, 32113601, 64227202, 128454404, 256908808]

約数ペア:

[(1, 256908808), (2, 128454404), (4, 64227202), (8, 32113601), (13, 19762216), (26, 9881108), (52, 4940554), (53, 4847336), (104, 2470277), (106, 2423668), (127, 2022904), (212, 1211834), (254, 1011452), (367, 700024), (424, 605917), (508, 505726), (689, 372872), (734, 350012), (1016, 252863), (1378, 186436), (1468, 175006), (1651, 155608), (2756, 93218), (2936, 87503), (3302, 77804), (4771, 53848), (5512, 46609), (6604, 38902), (6731, 38168), (9542, 26924), (13208, 19451), (13462, 19084)]