20758440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172987}}^1$

素因数の和:173001

約数の個数: 32

約数和(自身を含む): 62275680

約数和(自身を除く): 41517240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172987, 345974, 518961, 691948, 864935, 1037922, 1383896, 1729870, 2075844, 2594805, 3459740, 4151688, 5189610, 6919480, 10379220, 20758440]

約数ペア:

[(1, 20758440), (2, 10379220), (3, 6919480), (4, 5189610), (5, 4151688), (6, 3459740), (8, 2594805), (10, 2075844), (12, 1729870), (15, 1383896), (20, 1037922), (24, 864935), (30, 691948), (40, 518961), (60, 345974), (120, 172987)]