1655020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{997}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 3520944

約数和(自身を除く): 1865924

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 997, 1660, 1994, 3988, 4985, 9970, 19940, 82751, 165502, 331004, 413755, 827510, 1655020]

約数ペア:

[(1, 1655020), (2, 827510), (4, 413755), (5, 331004), (10, 165502), (20, 82751), (83, 19940), (166, 9970), (332, 4985), (415, 3988), (830, 1994), (997, 1660)]