20183880980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{225821}}^1$

素因数の和:225980

約数の個数: 48

約数和(自身を含む): 43818500880

約数和(自身を除く): 23634619900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 1090, 2180, 4469, 8938, 17876, 22345, 44690, 89380, 225821, 451642, 903284, 1129105, 2258210, 4516420, 9258661, 18517322, 24614489, 37034644, 46293305, 49228978, 92586610, 98457956, 123072445, 185173220, 246144890, 492289780, 1009194049, 2018388098, 4036776196, 5045970245, 10091940490, 20183880980]

約数ペア:

[(1, 20183880980), (2, 10091940490), (4, 5045970245), (5, 4036776196), (10, 2018388098), (20, 1009194049), (41, 492289780), (82, 246144890), (109, 185173220), (164, 123072445), (205, 98457956), (218, 92586610), (410, 49228978), (436, 46293305), (545, 37034644), (820, 24614489), (1090, 18517322), (2180, 9258661), (4469, 4516420), (8938, 2258210), (17876, 1129105), (22345, 903284), (44690, 451642), (89380, 225821)]