312403780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1201553}}^1$

素因数の和:1201575

約数の個数: 24

約数和(自身を含む): 706513752

約数和(自身を除く): 394109972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1201553, 2403106, 4806212, 6007765, 12015530, 15620189, 24031060, 31240378, 62480756, 78100945, 156201890, 312403780]

約数ペア:

[(1, 312403780), (2, 156201890), (4, 78100945), (5, 62480756), (10, 31240378), (13, 24031060), (20, 15620189), (26, 12015530), (52, 6007765), (65, 4806212), (130, 2403106), (260, 1201553)]