89750020

素因数分解:

$2^2\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{2789}}^1$

素因数の和:4407

約数の個数: 24

約数和(自身を含む): 188659800

約数和(自身を除く): 98909780

約数列:

[1, 2, 4, 5, 10, 20, 1609, 2789, 3218, 5578, 6436, 8045, 11156, 13945, 16090, 27890, 32180, 55780, 4487501, 8975002, 17950004, 22437505, 44875010, 89750020]

約数ペア:

[(1, 89750020), (2, 44875010), (4, 22437505), (5, 17950004), (10, 8975002), (20, 4487501), (1609, 55780), (2789, 32180), (3218, 27890), (5578, 16090), (6436, 13945), (8045, 11156)]