64672640

素因数分解:

$2^7\times 5^1\times {\mathrm{101051}}^1$

素因数の和:101070

約数の個数: 32

約数和(自身を含む): 154609560

約数和(自身を除く): 89936920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 101051, 202102, 404204, 505255, 808408, 1010510, 1616816, 2021020, 3233632, 4042040, 6467264, 8084080, 12934528, 16168160, 32336320, 64672640]

約数ペア:

[(1, 64672640), (2, 32336320), (4, 16168160), (5, 12934528), (8, 8084080), (10, 6467264), (16, 4042040), (20, 3233632), (32, 2021020), (40, 1616816), (64, 1010510), (80, 808408), (128, 505255), (160, 404204), (320, 202102), (640, 101051)]