81290775

素因数分解:

$3^1\times 5^2\times {\mathrm{677}}^1\times {\mathrm{1601}}^1$

素因数の和:2291

約数の個数: 24

約数和(自身を含む): 134683344

約数和(自身を除く): 53392569

約数列:

[1, 3, 5, 15, 25, 75, 677, 1601, 2031, 3385, 4803, 8005, 10155, 16925, 24015, 40025, 50775, 120075, 1083877, 3251631, 5419385, 16258155, 27096925, 81290775]

約数ペア:

[(1, 81290775), (3, 27096925), (5, 16258155), (15, 5419385), (25, 3251631), (75, 1083877), (677, 120075), (1601, 50775), (2031, 40025), (3385, 24015), (4803, 16925), (8005, 10155)]