208840478

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{331}}^1$

素因数の和:609

約数の個数: 64

約数和(自身を含む): 416503296

約数和(自身を除く): 207662818

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 241, 331, 374, 482, 662, 1309, 1687, 2317, 2618, 2651, 3374, 3641, 4097, 4634, 5302, 5627, 7282, 8194, 11254, 18557, 25487, 28679, 37114, 39389, 45067, 50974, 57358, 61897, 78778, 79771, 90134, 123794, 159542, 315469, 433279, 558397, 630938, 866558, 877481, 1116794, 1356107, 1754962, 2712214, 6142367, 9492749, 12284734, 14917177, 18985498, 29834354, 104420239, 208840478]

約数ペア:

[(1, 208840478), (2, 104420239), (7, 29834354), (11, 18985498), (14, 14917177), (17, 12284734), (22, 9492749), (34, 6142367), (77, 2712214), (119, 1754962), (154, 1356107), (187, 1116794), (238, 877481), (241, 866558), (331, 630938), (374, 558397), (482, 433279), (662, 315469), (1309, 159542), (1687, 123794), (2317, 90134), (2618, 79771), (2651, 78778), (3374, 61897), (3641, 57358), (4097, 50974), (4634, 45067), (5302, 39389), (5627, 37114), (7282, 28679), (8194, 25487), (11254, 18557)]