31135120

素因数分解:

$2^4\times 5^1\times {\mathrm{389189}}^1$

素因数の和:389202

約数の個数: 20

約数和(自身を含む): 72389340

約数和(自身を除く): 41254220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389189, 778378, 1556756, 1945945, 3113512, 3891890, 6227024, 7783780, 15567560, 31135120]

約数ペア:

[(1, 31135120), (2, 15567560), (4, 7783780), (5, 6227024), (8, 3891890), (10, 3113512), (16, 1945945), (20, 1556756), (40, 778378), (80, 389189)]