25182280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8867}}^1$

素因数の和:8949

約数の個数: 32

約数和(自身を含む): 57464640

約数和(自身を除く): 32282360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 8867, 17734, 35468, 44335, 70936, 88670, 177340, 354680, 629557, 1259114, 2518228, 3147785, 5036456, 6295570, 12591140, 25182280]

約数ペア:

[(1, 25182280), (2, 12591140), (4, 6295570), (5, 5036456), (8, 3147785), (10, 2518228), (20, 1259114), (40, 629557), (71, 354680), (142, 177340), (284, 88670), (355, 70936), (568, 44335), (710, 35468), (1420, 17734), (2840, 8867)]