203456020

素因数分解:

$2^2\times 5^1\times {\mathrm{10172801}}^1$

素因数の和:10172810

約数の個数: 12

約数和(自身を含む): 427257684

約数和(自身を除く): 223801664

約数列:

[1, 2, 4, 5, 10, 20, 10172801, 20345602, 40691204, 50864005, 101728010, 203456020]

約数ペア:

[(1, 203456020), (2, 101728010), (4, 50864005), (5, 40691204), (10, 20345602), (20, 10172801)]