12315740

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1583}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 25945920

約数和(自身を除く): 13630180

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1583, 1945, 3166, 3890, 6332, 7780, 7915, 15830, 31660, 615787, 1231574, 2463148, 3078935, 6157870, 12315740]

約数ペア:

[(1, 12315740), (2, 6157870), (4, 3078935), (5, 2463148), (10, 1231574), (20, 615787), (389, 31660), (778, 15830), (1556, 7915), (1583, 7780), (1945, 6332), (3166, 3890)]