290450979

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1747}}^1$

素因数の和:1809

約数の個数: 72

約数和(自身を含む): 544012560

約数和(自身を除く): 253561581

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 49, 63, 87, 91, 117, 147, 203, 261, 273, 377, 441, 609, 637, 819, 1131, 1421, 1747, 1827, 1911, 2639, 3393, 4263, 5241, 5733, 7917, 12229, 12789, 15723, 18473, 22711, 23751, 36687, 50663, 55419, 68133, 85603, 110061, 151989, 158977, 166257, 204399, 256809, 354641, 455967, 476931, 658619, 770427, 1063923, 1112839, 1430793, 1975857, 2482487, 3191769, 3338517, 4610333, 5927571, 7447461, 10015551, 13830999, 22342383, 32272331, 41492997, 96816993, 290450979]

約数ペア:

[(1, 290450979), (3, 96816993), (7, 41492997), (9, 32272331), (13, 22342383), (21, 13830999), (29, 10015551), (39, 7447461), (49, 5927571), (63, 4610333), (87, 3338517), (91, 3191769), (117, 2482487), (147, 1975857), (203, 1430793), (261, 1112839), (273, 1063923), (377, 770427), (441, 658619), (609, 476931), (637, 455967), (819, 354641), (1131, 256809), (1421, 204399), (1747, 166257), (1827, 158977), (1911, 151989), (2639, 110061), (3393, 85603), (4263, 68133), (5241, 55419), (5733, 50663), (7917, 36687), (12229, 23751), (12789, 22711), (15723, 18473)]