25671980

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1409}}^1$

素因数の和:2329

約数の個数: 24

約数和(自身を含む): 54008640

約数和(自身を除く): 28336660

約数列:

[1, 2, 4, 5, 10, 20, 911, 1409, 1822, 2818, 3644, 4555, 5636, 7045, 9110, 14090, 18220, 28180, 1283599, 2567198, 5134396, 6417995, 12835990, 25671980]

約数ペア:

[(1, 25671980), (2, 12835990), (4, 6417995), (5, 5134396), (10, 2567198), (20, 1283599), (911, 28180), (1409, 18220), (1822, 14090), (2818, 9110), (3644, 7045), (4555, 5636)]