31100920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{10651}}^1$

素因数の和:10735

約数の個数: 32

約数和(自身を含む): 70942320

約数和(自身を除く): 39841400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 10651, 21302, 42604, 53255, 85208, 106510, 213020, 426040, 777523, 1555046, 3110092, 3887615, 6220184, 7775230, 15550460, 31100920]

約数ペア:

[(1, 31100920), (2, 15550460), (4, 7775230), (5, 6220184), (8, 3887615), (10, 3110092), (20, 1555046), (40, 777523), (73, 426040), (146, 213020), (292, 106510), (365, 85208), (584, 53255), (730, 42604), (1460, 21302), (2920, 10651)]