31297995

素因数分解:

$3^4\times 5^1\times {\mathrm{77279}}^1$

素因数の和:77296

約数の個数: 20

約数和(自身を含む): 56105280

約数和(自身を除く): 24807285

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 77279, 231837, 386395, 695511, 1159185, 2086533, 3477555, 6259599, 10432665, 31297995]

約数ペア:

[(1, 31297995), (3, 10432665), (5, 6259599), (9, 3477555), (15, 2086533), (27, 1159185), (45, 695511), (81, 386395), (135, 231837), (405, 77279)]