400000045

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{15241}}^1$

素因数の和:15456

約数の個数: 16

約数和(自身を含む): 499327920

約数和(自身を除く): 99327875

約数列:

[1, 5, 29, 145, 181, 905, 5249, 15241, 26245, 76205, 441989, 2209945, 2758621, 13793105, 80000009, 400000045]

約数ペア:

[(1, 400000045), (5, 80000009), (29, 13793105), (145, 2758621), (181, 2209945), (905, 441989), (5249, 76205), (15241, 26245)]