28381715

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 34739040

約数和(自身を除く): 6357325

約数列:

[1, 5, 97, 139, 421, 485, 695, 2105, 13483, 40837, 58519, 67415, 204185, 292595, 5676343, 28381715]

約数ペア:

[(1, 28381715), (5, 5676343), (97, 292595), (139, 204185), (421, 67415), (485, 58519), (695, 40837), (2105, 13483)]