99615280

素因数分解:

$2^4\times 5^1\times {\mathrm{1245191}}^1$

素因数の和:1245204

約数の個数: 20

約数和(自身を含む): 231605712

約数和(自身を除く): 131990432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1245191, 2490382, 4980764, 6225955, 9961528, 12451910, 19923056, 24903820, 49807640, 99615280]

約数ペア:

[(1, 99615280), (2, 49807640), (4, 24903820), (5, 19923056), (8, 12451910), (10, 9961528), (16, 6225955), (20, 4980764), (40, 2490382), (80, 1245191)]