809464840

素因数分解:

$2^3\times 5^1\times {\mathrm{20236621}}^1$

素因数の和:20236632

約数の個数: 16

約数和(自身を含む): 1821295980

約数和(自身を除く): 1011831140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20236621, 40473242, 80946484, 101183105, 161892968, 202366210, 404732420, 809464840]

約数ペア:

[(1, 809464840), (2, 404732420), (4, 202366210), (5, 161892968), (8, 101183105), (10, 80946484), (20, 40473242), (40, 20236621)]