256105971

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{503}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 418279680

約数和(自身を除く): 162173709

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 139, 333, 407, 417, 503, 1221, 1251, 1509, 1529, 3663, 4527, 4587, 5143, 5533, 13761, 15429, 16599, 18611, 46287, 49797, 55833, 56573, 69917, 167499, 169719, 204721, 209751, 509157, 614163, 629253, 769087, 1842489, 2307261, 2586929, 6921783, 7760787, 23282361, 28456219, 85368657, 256105971]

約数ペア:

[(1, 256105971), (3, 85368657), (9, 28456219), (11, 23282361), (33, 7760787), (37, 6921783), (99, 2586929), (111, 2307261), (139, 1842489), (333, 769087), (407, 629253), (417, 614163), (503, 509157), (1221, 209751), (1251, 204721), (1509, 169719), (1529, 167499), (3663, 69917), (4527, 56573), (4587, 55833), (5143, 49797), (5533, 46287), (13761, 18611), (15429, 16599)]