40780120

素因数分解:

$2^3\times 5^1\times {\mathrm{1019503}}^1$

素因数の和:1019514

約数の個数: 16

約数和(自身を含む): 91755360

約数和(自身を除く): 50975240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1019503, 2039006, 4078012, 5097515, 8156024, 10195030, 20390060, 40780120]

約数ペア:

[(1, 40780120), (2, 20390060), (4, 10195030), (5, 8156024), (8, 5097515), (10, 4078012), (20, 2039006), (40, 1019503)]