19198960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21817}}^1$

素因数の和:21841

約数の個数: 40

約数和(自身を含む): 48697776

約数和(自身を除く): 29498816

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21817, 43634, 87268, 109085, 174536, 218170, 239987, 349072, 436340, 479974, 872680, 959948, 1199935, 1745360, 1919896, 2399870, 3839792, 4799740, 9599480, 19198960]

約数ペア:

[(1, 19198960), (2, 9599480), (4, 4799740), (5, 3839792), (8, 2399870), (10, 1919896), (11, 1745360), (16, 1199935), (20, 959948), (22, 872680), (40, 479974), (44, 436340), (55, 349072), (80, 239987), (88, 218170), (110, 174536), (176, 109085), (220, 87268), (440, 43634), (880, 21817)]