18086680

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3253}}^1$

素因数の和:3403

約数の個数: 32

約数和(自身を含む): 41000400

約数和(自身を除く): 22913720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3253, 5560, 6506, 13012, 16265, 26024, 32530, 65060, 130120, 452167, 904334, 1808668, 2260835, 3617336, 4521670, 9043340, 18086680]

約数ペア:

[(1, 18086680), (2, 9043340), (4, 4521670), (5, 3617336), (8, 2260835), (10, 1808668), (20, 904334), (40, 452167), (139, 130120), (278, 65060), (556, 32530), (695, 26024), (1112, 16265), (1390, 13012), (2780, 6506), (3253, 5560)]