30712720

素因数分解:

$2^4\times 5^1\times {\mathrm{383909}}^1$

素因数の和:383922

約数の個数: 20

約数和(自身を含む): 71407260

約数和(自身を除く): 40694540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383909, 767818, 1535636, 1919545, 3071272, 3839090, 6142544, 7678180, 15356360, 30712720]

約数ペア:

[(1, 30712720), (2, 15356360), (4, 7678180), (5, 6142544), (8, 3839090), (10, 3071272), (16, 1919545), (20, 1535636), (40, 767818), (80, 383909)]