642832564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{61129}}^1$

素因数の和:61383

約数の個数: 24

約数和(自身を含む): 1232380800

約数和(自身を除く): 589548236

約数列:

[1, 2, 4, 11, 22, 44, 239, 478, 956, 2629, 5258, 10516, 61129, 122258, 244516, 672419, 1344838, 2689676, 14609831, 29219662, 58439324, 160708141, 321416282, 642832564]

約数ペア:

[(1, 642832564), (2, 321416282), (4, 160708141), (11, 58439324), (22, 29219662), (44, 14609831), (239, 2689676), (478, 1344838), (956, 672419), (2629, 244516), (5258, 122258), (10516, 61129)]