2019778900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{492629}}^1$

素因数の和:492684

約数の個数: 36

約数和(自身を含む): 4489829820

約数和(自身を除く): 2470050920

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 492629, 985258, 1970516, 2463145, 4926290, 9852580, 12315725, 20197789, 24631450, 40395578, 49262900, 80791156, 100988945, 201977890, 403955780, 504944725, 1009889450, 2019778900]

約数ペア:

[(1, 2019778900), (2, 1009889450), (4, 504944725), (5, 403955780), (10, 201977890), (20, 100988945), (25, 80791156), (41, 49262900), (50, 40395578), (82, 24631450), (100, 20197789), (164, 12315725), (205, 9852580), (410, 4926290), (820, 2463145), (1025, 1970516), (2050, 985258), (4100, 492629)]