12858280

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{617}}^1$

素因数の和:1149

約数の個数: 32

約数和(自身を含む): 29033640

約数和(自身を除く): 16175360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 617, 1042, 1234, 2084, 2468, 2605, 3085, 4168, 4936, 5210, 6170, 10420, 12340, 20840, 24680, 321457, 642914, 1285828, 1607285, 2571656, 3214570, 6429140, 12858280]

約数ペア:

[(1, 12858280), (2, 6429140), (4, 3214570), (5, 2571656), (8, 1607285), (10, 1285828), (20, 642914), (40, 321457), (521, 24680), (617, 20840), (1042, 12340), (1234, 10420), (2084, 6170), (2468, 5210), (2605, 4936), (3085, 4168)]