99918160

素因数分解:

$2^4\times 5^1\times {\mathrm{1248977}}^1$

素因数の和:1248990

約数の個数: 20

約数和(自身を含む): 232309908

約数和(自身を除く): 132391748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1248977, 2497954, 4995908, 6244885, 9991816, 12489770, 19983632, 24979540, 49959080, 99918160]

約数ペア:

[(1, 99918160), (2, 49959080), (4, 24979540), (5, 19983632), (8, 12489770), (10, 9991816), (16, 6244885), (20, 4995908), (40, 2497954), (80, 1248977)]