78791660

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{6089}}^1$

素因数の和:6745

約数の個数: 24

約数和(自身を含む): 165745440

約数和(自身を除く): 86953780

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6089, 6470, 12178, 12940, 24356, 30445, 60890, 121780, 3939583, 7879166, 15758332, 19697915, 39395830, 78791660]

約数ペア:

[(1, 78791660), (2, 39395830), (4, 19697915), (5, 15758332), (10, 7879166), (20, 3939583), (647, 121780), (1294, 60890), (2588, 30445), (3235, 24356), (6089, 12940), (6470, 12178)]