20495530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8101}}^1$

素因数の和:8142

約数の個数: 32

約数和(自身を含む): 42000768

約数和(自身を除く): 21505238

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8101, 16202, 40505, 81010, 89111, 178222, 186323, 372646, 445555, 891110, 931615, 1863230, 2049553, 4099106, 10247765, 20495530]

約数ペア:

[(1, 20495530), (2, 10247765), (5, 4099106), (10, 2049553), (11, 1863230), (22, 931615), (23, 891110), (46, 445555), (55, 372646), (110, 186323), (115, 178222), (230, 89111), (253, 81010), (506, 40505), (1265, 16202), (2530, 8101)]