78343280

素因数分解:

$2^4\times 5^1\times {\mathrm{979291}}^1$

素因数の和:979304

約数の個数: 20

約数和(自身を含む): 182148312

約数和(自身を除く): 103805032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 979291, 1958582, 3917164, 4896455, 7834328, 9792910, 15668656, 19585820, 39171640, 78343280]

約数ペア:

[(1, 78343280), (2, 39171640), (4, 19585820), (5, 15668656), (8, 9792910), (10, 7834328), (16, 4896455), (20, 3917164), (40, 1958582), (80, 979291)]