18810110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{631}}^1$

素因数の和:920

約数の個数: 32

約数和(自身を含む): 37131264

約数和(自身を除く): 18321154

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 271, 542, 631, 1262, 1355, 2710, 2981, 3155, 5962, 6310, 6941, 13882, 14905, 29810, 34705, 69410, 171001, 342002, 855005, 1710010, 1881011, 3762022, 9405055, 18810110]

約数ペア:

[(1, 18810110), (2, 9405055), (5, 3762022), (10, 1881011), (11, 1710010), (22, 855005), (55, 342002), (110, 171001), (271, 69410), (542, 34705), (631, 29810), (1262, 14905), (1355, 13882), (2710, 6941), (2981, 6310), (3155, 5962)]