70431640

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4391}}^1$

素因数の和:4803

約数の個数: 32

約数和(自身を含む): 158902560

約数和(自身を除く): 88470920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 4391, 8020, 8782, 16040, 17564, 21955, 35128, 43910, 87820, 175640, 1760791, 3521582, 7043164, 8803955, 14086328, 17607910, 35215820, 70431640]

約数ペア:

[(1, 70431640), (2, 35215820), (4, 17607910), (5, 14086328), (8, 8803955), (10, 7043164), (20, 3521582), (40, 1760791), (401, 175640), (802, 87820), (1604, 43910), (2005, 35128), (3208, 21955), (4010, 17564), (4391, 16040), (8020, 8782)]