129560560

素因数分解:

$2^4\times 5^1\times {\mathrm{1619507}}^1$

素因数の和:1619520

約数の個数: 20

約数和(自身を含む): 301228488

約数和(自身を除く): 171667928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1619507, 3239014, 6478028, 8097535, 12956056, 16195070, 25912112, 32390140, 64780280, 129560560]

約数ペア:

[(1, 129560560), (2, 64780280), (4, 32390140), (5, 25912112), (8, 16195070), (10, 12956056), (16, 8097535), (20, 6478028), (40, 3239014), (80, 1619507)]