1640451860

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{157433}}^1$

素因数の和:157963

約数の個数: 24

約数和(自身を含む): 3451583016

約数和(自身を除く): 1811131156

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 10420, 157433, 314866, 629732, 787165, 1574330, 3148660, 82022593, 164045186, 328090372, 410112965, 820225930, 1640451860]

約数ペア:

[(1, 1640451860), (2, 820225930), (4, 410112965), (5, 328090372), (10, 164045186), (20, 82022593), (521, 3148660), (1042, 1574330), (2084, 787165), (2605, 629732), (5210, 314866), (10420, 157433)]