31246480

素因数分解:

$2^4\times 5^1\times {\mathrm{390581}}^1$

素因数の和:390594

約数の個数: 20

約数和(自身を含む): 72648252

約数和(自身を除く): 41401772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 390581, 781162, 1562324, 1952905, 3124648, 3905810, 6249296, 7811620, 15623240, 31246480]

約数ペア:

[(1, 31246480), (2, 15623240), (4, 7811620), (5, 6249296), (8, 3905810), (10, 3124648), (16, 1952905), (20, 1562324), (40, 781162), (80, 390581)]