81410320

素因数分解:

$2^4\times 5^1\times {\mathrm{853}}^1\times {\mathrm{1193}}^1$

素因数の和:2059

約数の個数: 40

約数和(自身を含む): 189659736

約数和(自身を除く): 108249416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 853, 1193, 1706, 2386, 3412, 4265, 4772, 5965, 6824, 8530, 9544, 11930, 13648, 17060, 19088, 23860, 34120, 47720, 68240, 95440, 1017629, 2035258, 4070516, 5088145, 8141032, 10176290, 16282064, 20352580, 40705160, 81410320]

約数ペア:

[(1, 81410320), (2, 40705160), (4, 20352580), (5, 16282064), (8, 10176290), (10, 8141032), (16, 5088145), (20, 4070516), (40, 2035258), (80, 1017629), (853, 95440), (1193, 68240), (1706, 47720), (2386, 34120), (3412, 23860), (4265, 19088), (4772, 17060), (5965, 13648), (6824, 11930), (8530, 9544)]