20180111090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1\times {\mathrm{53453}}^1$

素因数の和:55466

約数の個数: 32

約数和(自身を含む): 38255958720

約数和(自身を除く): 18075847630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1987, 3974, 9935, 19870, 37753, 53453, 75506, 106906, 188765, 267265, 377530, 534530, 1015607, 2031214, 5078035, 10156070, 106211111, 212422222, 531055555, 1062111110, 2018011109, 4036022218, 10090055545, 20180111090]

約数ペア:

[(1, 20180111090), (2, 10090055545), (5, 4036022218), (10, 2018011109), (19, 1062111110), (38, 531055555), (95, 212422222), (190, 106211111), (1987, 10156070), (3974, 5078035), (9935, 2031214), (19870, 1015607), (37753, 534530), (53453, 377530), (75506, 267265), (106906, 188765)]