279297986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 505612800

約数和(自身を除く): 226314814

約数列:

[1, 2, 11, 19, 22, 38, 41, 43, 82, 86, 209, 379, 418, 451, 473, 758, 779, 817, 902, 946, 1558, 1634, 1763, 3526, 4169, 7201, 8338, 8569, 8987, 14402, 15539, 16297, 17138, 17974, 19393, 31078, 32594, 33497, 38786, 66994, 79211, 158422, 170929, 179267, 295241, 309643, 341858, 358534, 368467, 590482, 619286, 668177, 736934, 1336354, 3247651, 3406073, 6495302, 6812146, 7349947, 12695363, 14699894, 25390726, 139648993, 279297986]

約数ペア:

[(1, 279297986), (2, 139648993), (11, 25390726), (19, 14699894), (22, 12695363), (38, 7349947), (41, 6812146), (43, 6495302), (82, 3406073), (86, 3247651), (209, 1336354), (379, 736934), (418, 668177), (451, 619286), (473, 590482), (758, 368467), (779, 358534), (817, 341858), (902, 309643), (946, 295241), (1558, 179267), (1634, 170929), (1763, 158422), (3526, 79211), (4169, 66994), (7201, 38786), (8338, 33497), (8569, 32594), (8987, 31078), (14402, 19393), (15539, 17974), (16297, 17138)]