81368505

素因数分解:

$3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4421}}^1$

素因数の和:4841

約数の個数: 24

約数和(自身を含む): 141415560

約数和(自身を除く): 60047055

約数列:

[1, 3, 5, 9, 15, 45, 409, 1227, 2045, 3681, 4421, 6135, 13263, 18405, 22105, 39789, 66315, 198945, 1808189, 5424567, 9040945, 16273701, 27122835, 81368505]

約数ペア:

[(1, 81368505), (3, 27122835), (5, 16273701), (9, 9040945), (15, 5424567), (45, 1808189), (409, 198945), (1227, 66315), (2045, 39789), (3681, 22105), (4421, 18405), (6135, 13263)]