7788009640

素因数分解:

$2^3\times 5^1\times {\mathrm{11909}}^1\times {\mathrm{16349}}^1$

素因数の和:28269

約数の個数: 32

約数和(自身を含む): 17525565000

約数和(自身を除く): 9737555360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 11909, 16349, 23818, 32698, 47636, 59545, 65396, 81745, 95272, 119090, 130792, 163490, 238180, 326980, 476360, 653960, 194700241, 389400482, 778800964, 973501205, 1557601928, 1947002410, 3894004820, 7788009640]

約数ペア:

[(1, 7788009640), (2, 3894004820), (4, 1947002410), (5, 1557601928), (8, 973501205), (10, 778800964), (20, 389400482), (40, 194700241), (11909, 653960), (16349, 476360), (23818, 326980), (32698, 238180), (47636, 163490), (59545, 130792), (65396, 119090), (81745, 95272)]