253801420

素因数分解:

$2^2\times 5^1\times {\mathrm{12690071}}^1$

素因数の和:12690080

約数の個数: 12

約数和(自身を含む): 532983024

約数和(自身を除く): 279181604

約数列:

[1, 2, 4, 5, 10, 20, 12690071, 25380142, 50760284, 63450355, 126900710, 253801420]

約数ペア:

[(1, 253801420), (2, 126900710), (4, 63450355), (5, 50760284), (10, 25380142), (20, 12690071)]