20936560

素因数分解:

$2^4\times 5^1\times {\mathrm{261707}}^1$

素因数の和:261720

約数の個数: 20

約数和(自身を含む): 48677688

約数和(自身を除く): 27741128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261707, 523414, 1046828, 1308535, 2093656, 2617070, 4187312, 5234140, 10468280, 20936560]

約数ペア:

[(1, 20936560), (2, 10468280), (4, 5234140), (5, 4187312), (8, 2617070), (10, 2093656), (16, 1308535), (20, 1046828), (40, 523414), (80, 261707)]