163978420

素因数分解:

$2^2\times 5^1\times {\mathrm{1033}}^1\times {\mathrm{7937}}^1$

素因数の和:8979

約数の個数: 24

約数和(自身を含む): 344731464

約数和(自身を除く): 180753044

約数列:

[1, 2, 4, 5, 10, 20, 1033, 2066, 4132, 5165, 7937, 10330, 15874, 20660, 31748, 39685, 79370, 158740, 8198921, 16397842, 32795684, 40994605, 81989210, 163978420]

約数ペア:

[(1, 163978420), (2, 81989210), (4, 40994605), (5, 32795684), (10, 16397842), (20, 8198921), (1033, 158740), (2066, 79370), (4132, 39685), (5165, 31748), (7937, 20660), (10330, 15874)]