20175702985

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1\times {\mathrm{1627}}^1$

素因数の和:2233

約数の個数: 32

約数和(自身を含む): 25029366912

約数和(自身を除く): 4853663927

約数列:

[1, 5, 43, 137, 215, 421, 685, 1627, 2105, 5891, 8135, 18103, 29455, 57677, 69961, 90515, 222899, 288385, 349805, 684967, 1114495, 2480111, 3424835, 9584657, 12400555, 29453581, 47923285, 93840479, 147267905, 469202395, 4035140597, 20175702985]

約数ペア:

[(1, 20175702985), (5, 4035140597), (43, 469202395), (137, 147267905), (215, 93840479), (421, 47923285), (685, 29453581), (1627, 12400555), (2105, 9584657), (5891, 3424835), (8135, 2480111), (18103, 1114495), (29455, 684967), (57677, 349805), (69961, 288385), (90515, 222899)]