1397788505

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1\times {\mathrm{6449}}^1$

素因数の和:7168

約数の個数: 16

約数和(自身を含む): 1705276800

約数和(自身を除く): 307488295

約数列:

[1, 5, 67, 335, 647, 3235, 6449, 32245, 43349, 216745, 432083, 2160415, 4172503, 20862515, 279557701, 1397788505]

約数ペア:

[(1, 1397788505), (5, 279557701), (67, 20862515), (335, 4172503), (647, 2160415), (3235, 432083), (6449, 216745), (32245, 43349)]