28908568

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 62868960

約数和(自身を除く): 33960392

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 83, 104, 136, 166, 197, 221, 332, 394, 442, 664, 788, 884, 1079, 1411, 1576, 1768, 2158, 2561, 2822, 3349, 4316, 5122, 5644, 6698, 8632, 10244, 11288, 13396, 16351, 18343, 20488, 26792, 32702, 36686, 43537, 65404, 73372, 87074, 130808, 146744, 174148, 212563, 277967, 348296, 425126, 555934, 850252, 1111868, 1700504, 2223736, 3613571, 7227142, 14454284, 28908568]

約数ペア:

[(1, 28908568), (2, 14454284), (4, 7227142), (8, 3613571), (13, 2223736), (17, 1700504), (26, 1111868), (34, 850252), (52, 555934), (68, 425126), (83, 348296), (104, 277967), (136, 212563), (166, 174148), (197, 146744), (221, 130808), (332, 87074), (394, 73372), (442, 65404), (664, 43537), (788, 36686), (884, 32702), (1079, 26792), (1411, 20488), (1576, 18343), (1768, 16351), (2158, 13396), (2561, 11288), (2822, 10244), (3349, 8632), (4316, 6698), (5122, 5644)]