181291208

素因数分解:

$2^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{19861}}^1$

素因数の和:20037

約数の個数: 32

約数和(自身を含む): 390884160

約数和(自身を除く): 209592952

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 163, 326, 652, 1141, 1304, 2282, 4564, 9128, 19861, 39722, 79444, 139027, 158888, 278054, 556108, 1112216, 3237343, 6474686, 12949372, 22661401, 25898744, 45322802, 90645604, 181291208]

約数ペア:

[(1, 181291208), (2, 90645604), (4, 45322802), (7, 25898744), (8, 22661401), (14, 12949372), (28, 6474686), (56, 3237343), (163, 1112216), (326, 556108), (652, 278054), (1141, 158888), (1304, 139027), (2282, 79444), (4564, 39722), (9128, 19861)]