28100560

素因数分解:

$2^4\times 5^1\times {\mathrm{351257}}^1$

素因数の和:351270

約数の個数: 20

約数和(自身を含む): 65333988

約数和(自身を除く): 37233428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351257, 702514, 1405028, 1756285, 2810056, 3512570, 5620112, 7025140, 14050280, 28100560]

約数ペア:

[(1, 28100560), (2, 14050280), (4, 7025140), (5, 5620112), (8, 3512570), (10, 2810056), (16, 1756285), (20, 1405028), (40, 702514), (80, 351257)]