13420725

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1409}}^1$

素因数の和:1549

約数の個数: 24

約数和(自身を含む): 22379520

約数和(自身を除く): 8958795

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1409, 1905, 3175, 4227, 7045, 9525, 21135, 35225, 105675, 178943, 536829, 894715, 2684145, 4473575, 13420725]

約数ペア:

[(1, 13420725), (3, 4473575), (5, 2684145), (15, 894715), (25, 536829), (75, 178943), (127, 105675), (381, 35225), (635, 21135), (1409, 9525), (1905, 7045), (3175, 4227)]