392720

素因数分解:

$2^4\times 5^1\times {\mathrm{4909}}^1$

素因数の和:4922

約数の個数: 20

約数和(自身を含む): 913260

約数和(自身を除く): 520540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4909, 9818, 19636, 24545, 39272, 49090, 78544, 98180, 196360, 392720]

約数ペア:

[(1, 392720), (2, 196360), (4, 98180), (5, 78544), (8, 49090), (10, 39272), (16, 24545), (20, 19636), (40, 9818), (80, 4909)]