40215320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 93899520

約数和(自身を除く): 53684200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 103, 172, 206, 215, 227, 344, 412, 430, 454, 515, 824, 860, 908, 1030, 1135, 1720, 1816, 2060, 2270, 4120, 4429, 4540, 8858, 9080, 9761, 17716, 19522, 22145, 23381, 35432, 39044, 44290, 46762, 48805, 78088, 88580, 93524, 97610, 116905, 177160, 187048, 195220, 233810, 390440, 467620, 935240, 1005383, 2010766, 4021532, 5026915, 8043064, 10053830, 20107660, 40215320]

約数ペア:

[(1, 40215320), (2, 20107660), (4, 10053830), (5, 8043064), (8, 5026915), (10, 4021532), (20, 2010766), (40, 1005383), (43, 935240), (86, 467620), (103, 390440), (172, 233810), (206, 195220), (215, 187048), (227, 177160), (344, 116905), (412, 97610), (430, 93524), (454, 88580), (515, 78088), (824, 48805), (860, 46762), (908, 44290), (1030, 39044), (1135, 35432), (1720, 23381), (1816, 22145), (2060, 19522), (2270, 17716), (4120, 9761), (4429, 9080), (4540, 8858)]