20906150

素因数分解:

$2^1\times 5^2\times {\mathrm{317}}^1\times {\mathrm{1319}}^1$

素因数の和:1648

約数の個数: 24

約数和(自身を含む): 39037680

約数和(自身を除く): 18131530

約数列:

[1, 2, 5, 10, 25, 50, 317, 634, 1319, 1585, 2638, 3170, 6595, 7925, 13190, 15850, 32975, 65950, 418123, 836246, 2090615, 4181230, 10453075, 20906150]

約数ペア:

[(1, 20906150), (2, 10453075), (5, 4181230), (10, 2090615), (25, 836246), (50, 418123), (317, 65950), (634, 32975), (1319, 15850), (1585, 13190), (2638, 7925), (3170, 6595)]