721640102

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{138617}}^1$

素因数の和:138775

約数の個数: 16

約数和(自身を含む): 1147757040

約数和(自身を除く): 426116938

約数列:

[1, 2, 19, 38, 137, 274, 2603, 5206, 138617, 277234, 2633723, 5267446, 18990529, 37981058, 360820051, 721640102]

約数ペア:

[(1, 721640102), (2, 360820051), (19, 37981058), (38, 18990529), (137, 5267446), (274, 2633723), (2603, 277234), (5206, 138617)]