31954640

素因数分解:

$2^4\times 5^1\times {\mathrm{399433}}^1$

素因数の和:399446

約数の個数: 20

約数和(自身を含む): 74294724

約数和(自身を除く): 42340084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399433, 798866, 1597732, 1997165, 3195464, 3994330, 6390928, 7988660, 15977320, 31954640]

約数ペア:

[(1, 31954640), (2, 15977320), (4, 7988660), (5, 6390928), (8, 3994330), (10, 3195464), (16, 1997165), (20, 1597732), (40, 798866), (80, 399433)]