81558272

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 172677120

約数和(自身を除く): 91118848

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 64, 86, 124, 128, 172, 239, 248, 256, 344, 478, 496, 688, 956, 992, 1333, 1376, 1912, 1984, 2666, 2752, 3824, 3968, 5332, 5504, 7409, 7648, 7936, 10277, 10664, 11008, 14818, 15296, 20554, 21328, 29636, 30592, 41108, 42656, 59272, 61184, 82216, 85312, 118544, 164432, 170624, 237088, 318587, 328864, 341248, 474176, 637174, 657728, 948352, 1274348, 1315456, 1896704, 2548696, 2630912, 5097392, 10194784, 20389568, 40779136, 81558272]

約数ペア:

[(1, 81558272), (2, 40779136), (4, 20389568), (8, 10194784), (16, 5097392), (31, 2630912), (32, 2548696), (43, 1896704), (62, 1315456), (64, 1274348), (86, 948352), (124, 657728), (128, 637174), (172, 474176), (239, 341248), (248, 328864), (256, 318587), (344, 237088), (478, 170624), (496, 164432), (688, 118544), (956, 85312), (992, 82216), (1333, 61184), (1376, 59272), (1912, 42656), (1984, 41108), (2666, 30592), (2752, 29636), (3824, 21328), (3968, 20554), (5332, 15296), (5504, 14818), (7409, 11008), (7648, 10664), (7936, 10277)]