198804538280

素因数分解:

$2^3\times 5^1\times {\mathrm{4970113457}}^1$

素因数の和:4970113468

約数の個数: 16

約数和(自身を含む): 447310211220

約数和(自身を除く): 248505672940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4970113457, 9940226914, 19880453828, 24850567285, 39760907656, 49701134570, 99402269140, 198804538280]

約数ペア:

[(1, 198804538280), (2, 99402269140), (4, 49701134570), (5, 39760907656), (8, 24850567285), (10, 19880453828), (20, 9940226914), (40, 4970113457)]