19801590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{660053}}^1$

素因数の和:660063

約数の個数: 16

約数和(自身を含む): 47523888

約数和(自身を除く): 27722298

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 660053, 1320106, 1980159, 3300265, 3960318, 6600530, 9900795, 19801590]

約数ペア:

[(1, 19801590), (2, 9900795), (3, 6600530), (5, 3960318), (6, 3300265), (10, 1980159), (15, 1320106), (30, 660053)]