19661875

素因数分解:

$5^4\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:376

約数の個数: 20

約数和(自身を含む): 24848296

約数和(自身を除く): 5186421

約数列:

[1, 5, 25, 125, 163, 193, 625, 815, 965, 4075, 4825, 20375, 24125, 31459, 101875, 120625, 157295, 786475, 3932375, 19661875]

約数ペア:

[(1, 19661875), (5, 3932375), (25, 786475), (125, 157295), (163, 120625), (193, 101875), (625, 31459), (815, 24125), (965, 20375), (4075, 4825)]