30910640

素因数分解:

$2^4\times 5^1\times {\mathrm{386383}}^1$

素因数の和:386396

約数の個数: 20

約数和(自身を含む): 71867424

約数和(自身を除く): 40956784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 386383, 772766, 1545532, 1931915, 3091064, 3863830, 6182128, 7727660, 15455320, 30910640]

約数ペア:

[(1, 30910640), (2, 15455320), (4, 7727660), (5, 6182128), (8, 3863830), (10, 3091064), (16, 1931915), (20, 1545532), (40, 772766), (80, 386383)]