1812565520

素因数分解:

$2^4\times 5^1\times {\mathrm{22657069}}^1$

素因数の和:22657082

約数の個数: 20

約数和(自身を含む): 4214215020

約数和(自身を除く): 2401649500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22657069, 45314138, 90628276, 113285345, 181256552, 226570690, 362513104, 453141380, 906282760, 1812565520]

約数ペア:

[(1, 1812565520), (2, 906282760), (4, 453141380), (5, 362513104), (8, 226570690), (10, 181256552), (16, 113285345), (20, 90628276), (40, 45314138), (80, 22657069)]