2019900880

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{72763}}^1$

素因数の和:73123

約数の個数: 40

約数和(自身を含む): 4709868192

約数和(自身を除く): 2689967312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 694, 1388, 1735, 2776, 3470, 5552, 6940, 13880, 27760, 72763, 145526, 291052, 363815, 582104, 727630, 1164208, 1455260, 2910520, 5821040, 25248761, 50497522, 100995044, 126243805, 201990088, 252487610, 403980176, 504975220, 1009950440, 2019900880]

約数ペア:

[(1, 2019900880), (2, 1009950440), (4, 504975220), (5, 403980176), (8, 252487610), (10, 201990088), (16, 126243805), (20, 100995044), (40, 50497522), (80, 25248761), (347, 5821040), (694, 2910520), (1388, 1455260), (1735, 1164208), (2776, 727630), (3470, 582104), (5552, 363815), (6940, 291052), (13880, 145526), (27760, 72763)]