40225720

素因数分解:

$2^3\times 5^1\times {\mathrm{1005643}}^1$

素因数の和:1005654

約数の個数: 16

約数和(自身を含む): 90507960

約数和(自身を除く): 50282240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1005643, 2011286, 4022572, 5028215, 8045144, 10056430, 20112860, 40225720]

約数ペア:

[(1, 40225720), (2, 20112860), (4, 10056430), (5, 8045144), (8, 5028215), (10, 4022572), (20, 2011286), (40, 1005643)]