81089470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1987}}^1$

素因数の和:2065

約数の個数: 64

約数和(自身を含む): 185504256

約数和(自身を除く): 104414786

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 53, 55, 70, 77, 106, 110, 154, 265, 371, 385, 530, 583, 742, 770, 1166, 1855, 1987, 2915, 3710, 3974, 4081, 5830, 8162, 9935, 13909, 19870, 20405, 21857, 27818, 40810, 43714, 69545, 105311, 109285, 139090, 152999, 210622, 218570, 305998, 526555, 737177, 764995, 1053110, 1158421, 1474354, 1529990, 2316842, 3685885, 5792105, 7371770, 8108947, 11584210, 16217894, 40544735, 81089470]

約数ペア:

[(1, 81089470), (2, 40544735), (5, 16217894), (7, 11584210), (10, 8108947), (11, 7371770), (14, 5792105), (22, 3685885), (35, 2316842), (53, 1529990), (55, 1474354), (70, 1158421), (77, 1053110), (106, 764995), (110, 737177), (154, 526555), (265, 305998), (371, 218570), (385, 210622), (530, 152999), (583, 139090), (742, 109285), (770, 105311), (1166, 69545), (1855, 43714), (1987, 40810), (2915, 27818), (3710, 21857), (3974, 20405), (4081, 19870), (5830, 13909), (8162, 9935)]