396918160

素因数分解:

$2^4\times 5^1\times {\mathrm{4961477}}^1$

素因数の和:4961490

約数の個数: 20

約数和(自身を含む): 922834908

約数和(自身を除く): 525916748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4961477, 9922954, 19845908, 24807385, 39691816, 49614770, 79383632, 99229540, 198459080, 396918160]

約数ペア:

[(1, 396918160), (2, 198459080), (4, 99229540), (5, 79383632), (8, 49614770), (10, 39691816), (16, 24807385), (20, 19845908), (40, 9922954), (80, 4961477)]