99495280

素因数分解:

$2^4\times 5^1\times {\mathrm{1243691}}^1$

素因数の和:1243704

約数の個数: 20

約数和(自身を含む): 231326712

約数和(自身を除く): 131831432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1243691, 2487382, 4974764, 6218455, 9949528, 12436910, 19899056, 24873820, 49747640, 99495280]

約数ペア:

[(1, 99495280), (2, 49747640), (4, 24873820), (5, 19899056), (8, 12436910), (10, 9949528), (16, 6218455), (20, 4974764), (40, 2487382), (80, 1243691)]