20461540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5471}}^1$

素因数の和:5508

約数の個数: 48

約数和(自身を含む): 49641984

約数和(自身を除く): 29180444

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5471, 10942, 21884, 27355, 54710, 60181, 93007, 109420, 120362, 186014, 240724, 300905, 372028, 465035, 601810, 930070, 1023077, 1203620, 1860140, 2046154, 4092308, 5115385, 10230770, 20461540]

約数ペア:

[(1, 20461540), (2, 10230770), (4, 5115385), (5, 4092308), (10, 2046154), (11, 1860140), (17, 1203620), (20, 1023077), (22, 930070), (34, 601810), (44, 465035), (55, 372028), (68, 300905), (85, 240724), (110, 186014), (170, 120362), (187, 109420), (220, 93007), (340, 60181), (374, 54710), (748, 27355), (935, 21884), (1870, 10942), (3740, 5471)]