20161250

素因数分解:

$2^1\times 5^4\times {\mathrm{127}}^2$

素因数の和:276

約数の個数: 30

約数和(自身を含む): 38090151

約数和(自身を除く): 17928901

約数列:

[1, 2, 5, 10, 25, 50, 125, 127, 250, 254, 625, 635, 1250, 1270, 3175, 6350, 15875, 16129, 31750, 32258, 79375, 80645, 158750, 161290, 403225, 806450, 2016125, 4032250, 10080625, 20161250]

約数ペア:

[(1, 20161250), (2, 10080625), (5, 4032250), (10, 2016125), (25, 806450), (50, 403225), (125, 161290), (127, 158750), (250, 80645), (254, 79375), (625, 32258), (635, 31750), (1250, 16129), (1270, 15875), (3175, 6350)]