521305940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{166021}}^1$

素因数の和:166187

約数の個数: 24

約数和(自身を含む): 1101721992

約数和(自身を除く): 580416052

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 166021, 332042, 664084, 830105, 1660210, 3320420, 26065297, 52130594, 104261188, 130326485, 260652970, 521305940]

約数ペア:

[(1, 521305940), (2, 260652970), (4, 130326485), (5, 104261188), (10, 52130594), (20, 26065297), (157, 3320420), (314, 1660210), (628, 830105), (785, 664084), (1570, 332042), (3140, 166021)]