672640

素因数分解:

$2^7\times 5^1\times {\mathrm{1051}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 1609560

約数和(自身を除く): 936920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1051, 2102, 4204, 5255, 8408, 10510, 16816, 21020, 33632, 42040, 67264, 84080, 134528, 168160, 336320, 672640]

約数ペア:

[(1, 672640), (2, 336320), (4, 168160), (5, 134528), (8, 84080), (10, 67264), (16, 42040), (20, 33632), (32, 21020), (40, 16816), (64, 10510), (80, 8408), (128, 5255), (160, 4204), (320, 2102), (640, 1051)]