641054080

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18899}}^1$

素因数の和:18971

約数の個数: 64

約数和(自身を含む): 1561518000

約数和(自身を除く): 920463920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 530, 640, 848, 1060, 1696, 2120, 3392, 4240, 6784, 8480, 16960, 18899, 33920, 37798, 75596, 94495, 151192, 188990, 302384, 377980, 604768, 755960, 1001647, 1209536, 1511920, 2003294, 2419072, 3023840, 4006588, 5008235, 6047680, 8013176, 10016470, 12095360, 16026352, 20032940, 32052704, 40065880, 64105408, 80131760, 128210816, 160263520, 320527040, 641054080]

約数ペア:

[(1, 641054080), (2, 320527040), (4, 160263520), (5, 128210816), (8, 80131760), (10, 64105408), (16, 40065880), (20, 32052704), (32, 20032940), (40, 16026352), (53, 12095360), (64, 10016470), (80, 8013176), (106, 6047680), (128, 5008235), (160, 4006588), (212, 3023840), (265, 2419072), (320, 2003294), (424, 1511920), (530, 1209536), (640, 1001647), (848, 755960), (1060, 604768), (1696, 377980), (2120, 302384), (3392, 188990), (4240, 151192), (6784, 94495), (8480, 75596), (16960, 37798), (18899, 33920)]