199891880

素因数分解:

$2^3\times 5^1\times {\mathrm{4997297}}^1$

素因数の和:4997308

約数の個数: 16

約数和(自身を含む): 449756820

約数和(自身を除く): 249864940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4997297, 9994594, 19989188, 24986485, 39978376, 49972970, 99945940, 199891880]

約数ペア:

[(1, 199891880), (2, 99945940), (4, 49972970), (5, 39978376), (8, 24986485), (10, 19989188), (20, 9994594), (40, 4997297)]