247403780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{951553}}^1$

素因数の和:951575

約数の個数: 24

約数和(自身を含む): 559513752

約数和(自身を除く): 312109972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 951553, 1903106, 3806212, 4757765, 9515530, 12370189, 19031060, 24740378, 49480756, 61850945, 123701890, 247403780]

約数ペア:

[(1, 247403780), (2, 123701890), (4, 61850945), (5, 49480756), (10, 24740378), (13, 19031060), (20, 12370189), (26, 9515530), (52, 4757765), (65, 3806212), (130, 1903106), (260, 951553)]