139720580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{44497}}^1$

素因数の和:44663

約数の個数: 24

約数和(自身を含む): 295288728

約数和(自身を除く): 155568148

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 44497, 88994, 177988, 222485, 444970, 889940, 6986029, 13972058, 27944116, 34930145, 69860290, 139720580]

約数ペア:

[(1, 139720580), (2, 69860290), (4, 34930145), (5, 27944116), (10, 13972058), (20, 6986029), (157, 889940), (314, 444970), (628, 222485), (785, 177988), (1570, 88994), (3140, 44497)]