71914960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69149}}^1$

素因数の和:69175

約数の個数: 40

約数和(自身を含む): 180066600

約数和(自身を除く): 108151640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 69149, 138298, 276596, 345745, 553192, 691490, 898937, 1106384, 1382980, 1797874, 2765960, 3595748, 4494685, 5531920, 7191496, 8989370, 14382992, 17978740, 35957480, 71914960]

約数ペア:

[(1, 71914960), (2, 35957480), (4, 17978740), (5, 14382992), (8, 8989370), (10, 7191496), (13, 5531920), (16, 4494685), (20, 3595748), (26, 2765960), (40, 1797874), (52, 1382980), (65, 1106384), (80, 898937), (104, 691490), (130, 553192), (208, 345745), (260, 276596), (520, 138298), (1040, 69149)]