123781360

素因数分解:

$2^4\times 5^1\times {\mathrm{1547267}}^1$

素因数の和:1547280

約数の個数: 20

約数和(自身を含む): 287791848

約数和(自身を除く): 164010488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1547267, 3094534, 6189068, 7736335, 12378136, 15472670, 24756272, 30945340, 61890680, 123781360]

約数ペア:

[(1, 123781360), (2, 61890680), (4, 30945340), (5, 24756272), (8, 15472670), (10, 12378136), (16, 7736335), (20, 6189068), (40, 3094534), (80, 1547267)]