68490340

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{2131}}^1$

素因数の和:3747

約数の個数: 24

約数和(自身を含む): 143986752

約数和(自身を除く): 75496412

約数列:

[1, 2, 4, 5, 10, 20, 1607, 2131, 3214, 4262, 6428, 8035, 8524, 10655, 16070, 21310, 32140, 42620, 3424517, 6849034, 13698068, 17122585, 34245170, 68490340]

約数ペア:

[(1, 68490340), (2, 34245170), (4, 17122585), (5, 13698068), (10, 6849034), (20, 3424517), (1607, 42620), (2131, 32140), (3214, 21310), (4262, 16070), (6428, 10655), (8035, 8524)]