64008040

素因数分解:

$2^3\times 5^1\times {\mathrm{1600201}}^1$

素因数の和:1600212

約数の個数: 16

約数和(自身を含む): 144018180

約数和(自身を除く): 80010140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1600201, 3200402, 6400804, 8001005, 12801608, 16002010, 32004020, 64008040]

約数ペア:

[(1, 64008040), (2, 32004020), (4, 16002010), (5, 12801608), (8, 8001005), (10, 6400804), (20, 3200402), (40, 1600201)]