19629160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11969}}^1$

素因数の和:12021

約数の個数: 32

約数和(自身を含む): 45246600

約数和(自身を除く): 25617440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11969, 23938, 47876, 59845, 95752, 119690, 239380, 478760, 490729, 981458, 1962916, 2453645, 3925832, 4907290, 9814580, 19629160]

約数ペア:

[(1, 19629160), (2, 9814580), (4, 4907290), (5, 3925832), (8, 2453645), (10, 1962916), (20, 981458), (40, 490729), (41, 478760), (82, 239380), (164, 119690), (205, 95752), (328, 59845), (410, 47876), (820, 23938), (1640, 11969)]