156940720

素因数分解:

$2^4\times 5^1\times {\mathrm{1961759}}^1$

素因数の和:1961772

約数の個数: 20

約数和(自身を含む): 364887360

約数和(自身を除く): 207946640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1961759, 3923518, 7847036, 9808795, 15694072, 19617590, 31388144, 39235180, 78470360, 156940720]

約数ペア:

[(1, 156940720), (2, 78470360), (4, 39235180), (5, 31388144), (8, 19617590), (10, 15694072), (16, 9808795), (20, 7847036), (40, 3923518), (80, 1961759)]