30781395

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1723}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 53519856

約数和(自身を除く): 22738461

約数列:

[1, 3, 5, 9, 15, 45, 397, 1191, 1723, 1985, 3573, 5169, 5955, 8615, 15507, 17865, 25845, 77535, 684031, 2052093, 3420155, 6156279, 10260465, 30781395]

約数ペア:

[(1, 30781395), (3, 10260465), (5, 6156279), (9, 3420155), (15, 2052093), (45, 684031), (397, 77535), (1191, 25845), (1723, 17865), (1985, 15507), (3573, 8615), (5169, 5955)]