204027890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2381}}^1$

素因数の和:2459

約数の個数: 64

約数和(自身を含む): 432190080

約数和(自身を除く): 228162190

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 41, 55, 82, 95, 110, 190, 205, 209, 410, 418, 451, 779, 902, 1045, 1558, 2090, 2255, 2381, 3895, 4510, 4762, 7790, 8569, 11905, 17138, 23810, 26191, 42845, 45239, 52382, 85690, 90478, 97621, 130955, 195242, 226195, 261910, 452390, 488105, 497629, 976210, 995258, 1073831, 1854799, 2147662, 2488145, 3709598, 4976290, 5369155, 9273995, 10738310, 18547990, 20402789, 40805578, 102013945, 204027890]

約数ペア:

[(1, 204027890), (2, 102013945), (5, 40805578), (10, 20402789), (11, 18547990), (19, 10738310), (22, 9273995), (38, 5369155), (41, 4976290), (55, 3709598), (82, 2488145), (95, 2147662), (110, 1854799), (190, 1073831), (205, 995258), (209, 976210), (410, 497629), (418, 488105), (451, 452390), (779, 261910), (902, 226195), (1045, 195242), (1558, 130955), (2090, 97621), (2255, 90478), (2381, 85690), (3895, 52382), (4510, 45239), (4762, 42845), (7790, 26191), (8569, 23810), (11905, 17138)]