8678420

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1093}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 18287304

約数和(自身を除く): 9608884

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1093, 1588, 1985, 2186, 3970, 4372, 5465, 7940, 10930, 21860, 433921, 867842, 1735684, 2169605, 4339210, 8678420]

約数ペア:

[(1, 8678420), (2, 4339210), (4, 2169605), (5, 1735684), (10, 867842), (20, 433921), (397, 21860), (794, 10930), (1093, 7940), (1588, 5465), (1985, 4372), (2186, 3970)]