128990494825

素因数分解:

$5^2\times {\mathrm{3271}}^1\times {\mathrm{1577383}}^1$

素因数の和:1580664

約数の個数: 12

約数和(自身を含む): 159997213888

約数和(自身を除く): 31006719063

約数列:

[1, 5, 25, 3271, 16355, 81775, 1577383, 7886915, 39434575, 5159619793, 25798098965, 128990494825]

約数ペア:

[(1, 128990494825), (5, 25798098965), (25, 5159619793), (3271, 39434575), (16355, 7886915), (81775, 1577383)]