64813415

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 83244672

約数和(自身を除く): 18431257

約数列:

[1, 5, 41, 61, 71, 73, 205, 305, 355, 365, 2501, 2911, 2993, 4331, 4453, 5183, 12505, 14555, 14965, 21655, 22265, 25915, 177571, 182573, 212503, 316163, 887855, 912865, 1062515, 1580815, 12962683, 64813415]

約数ペア:

[(1, 64813415), (5, 12962683), (41, 1580815), (61, 1062515), (71, 912865), (73, 887855), (205, 316163), (305, 212503), (355, 182573), (365, 177571), (2501, 25915), (2911, 22265), (2993, 21655), (4331, 14965), (4453, 14555), (5183, 12505)]