18631040

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:739

約数の個数: 64

約数和(自身を含む): 45642960

約数和(自身を除く): 27011920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 677, 688, 860, 1354, 1376, 1720, 2708, 2752, 3385, 3440, 5416, 5504, 6770, 6880, 10832, 13540, 13760, 21664, 27080, 27520, 29111, 43328, 54160, 58222, 86656, 108320, 116444, 145555, 216640, 232888, 291110, 433280, 465776, 582220, 931552, 1164440, 1863104, 2328880, 3726208, 4657760, 9315520, 18631040]

約数ペア:

[(1, 18631040), (2, 9315520), (4, 4657760), (5, 3726208), (8, 2328880), (10, 1863104), (16, 1164440), (20, 931552), (32, 582220), (40, 465776), (43, 433280), (64, 291110), (80, 232888), (86, 216640), (128, 145555), (160, 116444), (172, 108320), (215, 86656), (320, 58222), (344, 54160), (430, 43328), (640, 29111), (677, 27520), (688, 27080), (860, 21664), (1354, 13760), (1376, 13540), (1720, 10832), (2708, 6880), (2752, 6770), (3385, 5504), (3440, 5416)]