20107660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 43819776

約数和(自身を除く): 23712116

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 103, 172, 206, 215, 227, 412, 430, 454, 515, 860, 908, 1030, 1135, 2060, 2270, 4429, 4540, 8858, 9761, 17716, 19522, 22145, 23381, 39044, 44290, 46762, 48805, 88580, 93524, 97610, 116905, 195220, 233810, 467620, 1005383, 2010766, 4021532, 5026915, 10053830, 20107660]

約数ペア:

[(1, 20107660), (2, 10053830), (4, 5026915), (5, 4021532), (10, 2010766), (20, 1005383), (43, 467620), (86, 233810), (103, 195220), (172, 116905), (206, 97610), (215, 93524), (227, 88580), (412, 48805), (430, 46762), (454, 44290), (515, 39044), (860, 23381), (908, 22145), (1030, 19522), (1135, 17716), (2060, 9761), (2270, 8858), (4429, 4540)]