20124940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5381}}^1$

素因数の和:5418

約数の個数: 48

約数和(自身を含む): 48825504

約数和(自身を除く): 28700564

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, 5381, 10762, 21524, 26905, 53810, 59191, 91477, 107620, 118382, 182954, 236764, 295955, 365908, 457385, 591910, 914770, 1006247, 1183820, 1829540, 2012494, 4024988, 5031235, 10062470, 20124940]

約数ペア:

[(1, 20124940), (2, 10062470), (4, 5031235), (5, 4024988), (10, 2012494), (11, 1829540), (17, 1183820), (20, 1006247), (22, 914770), (34, 591910), (44, 457385), (55, 365908), (68, 295955), (85, 236764), (110, 182954), (170, 118382), (187, 107620), (220, 91477), (340, 59191), (374, 53810), (748, 26905), (935, 21524), (1870, 10762), (3740, 5381)]