18876080

素因数分解:

$2^4\times 5^1\times {\mathrm{235951}}^1$

素因数の和:235964

約数の個数: 20

約数和(自身を含む): 43887072

約数和(自身を除く): 25010992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235951, 471902, 943804, 1179755, 1887608, 2359510, 3775216, 4719020, 9438040, 18876080]

約数ペア:

[(1, 18876080), (2, 9438040), (4, 4719020), (5, 3775216), (8, 2359510), (10, 1887608), (16, 1179755), (20, 943804), (40, 471902), (80, 235951)]