156908912080

素因数分解:

$2^4\times 5^1\times {\mathrm{1961361401}}^1$

素因数の和:1961361414

約数の個数: 20

約数和(自身を含む): 364813220772

約数和(自身を除く): 207904308692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1961361401, 3922722802, 7845445604, 9806807005, 15690891208, 19613614010, 31381782416, 39227228020, 78454456040, 156908912080]

約数ペア:

[(1, 156908912080), (2, 78454456040), (4, 39227228020), (5, 31381782416), (8, 19613614010), (10, 15690891208), (16, 9806807005), (20, 7845445604), (40, 3922722802), (80, 1961361401)]