81231825

素因数分解:

$3^1\times 5^2\times {\mathrm{941}}^1\times {\mathrm{1151}}^1$

素因数の和:2105

約数の個数: 24

約数和(自身を含む): 134562816

約数和(自身を除く): 53330991

約数列:

[1, 3, 5, 15, 25, 75, 941, 1151, 2823, 3453, 4705, 5755, 14115, 17265, 23525, 28775, 70575, 86325, 1083091, 3249273, 5415455, 16246365, 27077275, 81231825]

約数ペア:

[(1, 81231825), (3, 27077275), (5, 16246365), (15, 5415455), (25, 3249273), (75, 1083091), (941, 86325), (1151, 70575), (2823, 28775), (3453, 23525), (4705, 17265), (5755, 14115)]