156355280

素因数分解:

$2^4\times 5^1\times {\mathrm{1954441}}^1$

素因数の和:1954454

約数の個数: 20

約数和(自身を含む): 363526212

約数和(自身を除く): 207170932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1954441, 3908882, 7817764, 9772205, 15635528, 19544410, 31271056, 39088820, 78177640, 156355280]

約数ペア:

[(1, 156355280), (2, 78177640), (4, 39088820), (5, 31271056), (8, 19544410), (10, 15635528), (16, 9772205), (20, 7817764), (40, 3908882), (80, 1954441)]