181997360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{55487}}^1$

素因数の和:55541

約数の個数: 40

約数和(自身を含む): 433472256

約数和(自身を除く): 251474896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 55487, 110974, 221948, 277435, 443896, 554870, 887792, 1109740, 2219480, 2274967, 4438960, 4549934, 9099868, 11374835, 18199736, 22749670, 36399472, 45499340, 90998680, 181997360]

約数ペア:

[(1, 181997360), (2, 90998680), (4, 45499340), (5, 36399472), (8, 22749670), (10, 18199736), (16, 11374835), (20, 9099868), (40, 4549934), (41, 4438960), (80, 2274967), (82, 2219480), (164, 1109740), (205, 887792), (328, 554870), (410, 443896), (656, 277435), (820, 221948), (1640, 110974), (3280, 55487)]