81643136

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 170674560

約数和(自身を除く): 89031424

約数列:

[1, 2, 4, 8, 16, 32, 41, 47, 64, 82, 94, 128, 164, 188, 328, 331, 376, 656, 662, 752, 1312, 1324, 1504, 1927, 2624, 2648, 3008, 3854, 5248, 5296, 6016, 7708, 10592, 13571, 15416, 15557, 21184, 27142, 30832, 31114, 42368, 54284, 61664, 62228, 108568, 123328, 124456, 217136, 246656, 248912, 434272, 497824, 637837, 868544, 995648, 1275674, 1737088, 1991296, 2551348, 5102696, 10205392, 20410784, 40821568, 81643136]

約数ペア:

[(1, 81643136), (2, 40821568), (4, 20410784), (8, 10205392), (16, 5102696), (32, 2551348), (41, 1991296), (47, 1737088), (64, 1275674), (82, 995648), (94, 868544), (128, 637837), (164, 497824), (188, 434272), (328, 248912), (331, 246656), (376, 217136), (656, 124456), (662, 123328), (752, 108568), (1312, 62228), (1324, 61664), (1504, 54284), (1927, 42368), (2624, 31114), (2648, 30832), (3008, 27142), (3854, 21184), (5248, 15557), (5296, 15416), (6016, 13571), (7708, 10592)]