256833430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:985

約数の個数: 64

約数和(自身を含む): 546860160

約数和(自身を除く): 290026730

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 109, 205, 218, 287, 410, 545, 574, 763, 821, 1090, 1435, 1526, 1642, 2870, 3815, 4105, 4469, 5747, 7630, 8210, 8938, 11494, 22345, 28735, 31283, 33661, 44690, 57470, 62566, 67322, 89489, 156415, 168305, 178978, 235627, 312830, 336610, 447445, 471254, 626423, 894890, 1178135, 1252846, 2356270, 3132115, 3669049, 6264230, 7338098, 18345245, 25683343, 36690490, 51366686, 128416715, 256833430]

約数ペア:

[(1, 256833430), (2, 128416715), (5, 51366686), (7, 36690490), (10, 25683343), (14, 18345245), (35, 7338098), (41, 6264230), (70, 3669049), (82, 3132115), (109, 2356270), (205, 1252846), (218, 1178135), (287, 894890), (410, 626423), (545, 471254), (574, 447445), (763, 336610), (821, 312830), (1090, 235627), (1435, 178978), (1526, 168305), (1642, 156415), (2870, 89489), (3815, 67322), (4105, 62566), (4469, 57470), (5747, 44690), (7630, 33661), (8210, 31283), (8938, 28735), (11494, 22345)]