64767680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6529}}^1$

素因数の和:6577

約数の個数: 56

約数和(自身を含む): 159227520

約数和(自身を除く): 94459840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 6529, 9920, 13058, 26116, 32645, 52232, 65290, 104464, 130580, 202399, 208928, 261160, 404798, 417856, 522320, 809596, 1011995, 1044640, 1619192, 2023990, 2089280, 3238384, 4047980, 6476768, 8095960, 12953536, 16191920, 32383840, 64767680]

約数ペア:

[(1, 64767680), (2, 32383840), (4, 16191920), (5, 12953536), (8, 8095960), (10, 6476768), (16, 4047980), (20, 3238384), (31, 2089280), (32, 2023990), (40, 1619192), (62, 1044640), (64, 1011995), (80, 809596), (124, 522320), (155, 417856), (160, 404798), (248, 261160), (310, 208928), (320, 202399), (496, 130580), (620, 104464), (992, 65290), (1240, 52232), (1984, 32645), (2480, 26116), (4960, 13058), (6529, 9920)]