20857510

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 38467872

約数和(自身を除く): 17610362

約数列:

[1, 2, 5, 10, 101, 107, 193, 202, 214, 386, 505, 535, 965, 1010, 1070, 1930, 10807, 19493, 20651, 21614, 38986, 41302, 54035, 97465, 103255, 108070, 194930, 206510, 2085751, 4171502, 10428755, 20857510]

約数ペア:

[(1, 20857510), (2, 10428755), (5, 4171502), (10, 2085751), (101, 206510), (107, 194930), (193, 108070), (202, 103255), (214, 97465), (386, 54035), (505, 41302), (535, 38986), (965, 21614), (1010, 20651), (1070, 19493), (1930, 10807)]