258979712

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:491

約数の個数: 64

約数和(自身を含む): 532815360

約数和(自身を除く): 273835648

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 211, 223, 344, 422, 446, 688, 844, 892, 1376, 1688, 1784, 2752, 3376, 3568, 5504, 6752, 7136, 9073, 9589, 13504, 14272, 18146, 19178, 27008, 28544, 36292, 38356, 47053, 72584, 76712, 94106, 145168, 153424, 188212, 290336, 306848, 376424, 580672, 613696, 752848, 1161344, 1227392, 1505696, 2023279, 3011392, 4046558, 6022784, 8093116, 16186232, 32372464, 64744928, 129489856, 258979712]

約数ペア:

[(1, 258979712), (2, 129489856), (4, 64744928), (8, 32372464), (16, 16186232), (32, 8093116), (43, 6022784), (64, 4046558), (86, 3011392), (128, 2023279), (172, 1505696), (211, 1227392), (223, 1161344), (344, 752848), (422, 613696), (446, 580672), (688, 376424), (844, 306848), (892, 290336), (1376, 188212), (1688, 153424), (1784, 145168), (2752, 94106), (3376, 76712), (3568, 72584), (5504, 47053), (6752, 38356), (7136, 36292), (9073, 28544), (9589, 27008), (13504, 19178), (14272, 18146)]