80987475

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{8243}}^1$

素因数の和:8387

約数の個数: 24

約数和(自身を含む): 134937792

約数和(自身を除く): 53950317

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1965, 3275, 8243, 9825, 24729, 41215, 123645, 206075, 618225, 1079833, 3239499, 5399165, 16197495, 26995825, 80987475]

約数ペア:

[(1, 80987475), (3, 26995825), (5, 16197495), (15, 5399165), (25, 3239499), (75, 1079833), (131, 618225), (393, 206075), (655, 123645), (1965, 41215), (3275, 24729), (8243, 9825)]