278330416

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191161}}^1$

素因数の和:191189

約数の個数: 40

約数和(自身を含む): 663714464

約数和(自身を除く): 385384048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 191161, 382322, 764644, 1338127, 1529288, 2485093, 2676254, 3058576, 4970186, 5352508, 9940372, 10705016, 17395651, 19880744, 21410032, 34791302, 39761488, 69582604, 139165208, 278330416]

約数ペア:

[(1, 278330416), (2, 139165208), (4, 69582604), (7, 39761488), (8, 34791302), (13, 21410032), (14, 19880744), (16, 17395651), (26, 10705016), (28, 9940372), (52, 5352508), (56, 4970186), (91, 3058576), (104, 2676254), (112, 2485093), (182, 1529288), (208, 1338127), (364, 764644), (728, 382322), (1456, 191161)]