20691180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38317}}^1$

素因数の和:38335

約数の個数: 48

約数和(自身を含む): 64374240

約数和(自身を除く): 43683060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38317, 76634, 114951, 153268, 191585, 229902, 344853, 383170, 459804, 574755, 689706, 766340, 1034559, 1149510, 1379412, 1724265, 2069118, 2299020, 3448530, 4138236, 5172795, 6897060, 10345590, 20691180]

約数ペア:

[(1, 20691180), (2, 10345590), (3, 6897060), (4, 5172795), (5, 4138236), (6, 3448530), (9, 2299020), (10, 2069118), (12, 1724265), (15, 1379412), (18, 1149510), (20, 1034559), (27, 766340), (30, 689706), (36, 574755), (45, 459804), (54, 383170), (60, 344853), (90, 229902), (108, 191585), (135, 153268), (180, 114951), (270, 76634), (540, 38317)]