1987280

素因数分解:

$2^4\times 5^1\times {\mathrm{24841}}^1$

素因数の和:24854

約数の個数: 20

約数和(自身を含む): 4620612

約数和(自身を除く): 2633332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 24841, 49682, 99364, 124205, 198728, 248410, 397456, 496820, 993640, 1987280]

約数ペア:

[(1, 1987280), (2, 993640), (4, 496820), (5, 397456), (8, 248410), (10, 198728), (16, 124205), (20, 99364), (40, 49682), (80, 24841)]