20802970

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 17973350

約数列:

[1, 2, 5, 10, 43, 86, 101, 202, 215, 430, 479, 505, 958, 1010, 2395, 4343, 4790, 8686, 20597, 21715, 41194, 43430, 48379, 96758, 102985, 205970, 241895, 483790, 2080297, 4160594, 10401485, 20802970]

約数ペア:

[(1, 20802970), (2, 10401485), (5, 4160594), (10, 2080297), (43, 483790), (86, 241895), (101, 205970), (202, 102985), (215, 96758), (430, 48379), (479, 43430), (505, 41194), (958, 21715), (1010, 20597), (2395, 8686), (4343, 4790)]