1991500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{569}}^1$

素因数の和:595

約数の個数: 48

約数和(自身を含む): 4979520

約数和(自身を除く): 2988020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 569, 700, 875, 1138, 1750, 2276, 2845, 3500, 3983, 5690, 7966, 11380, 14225, 15932, 19915, 28450, 39830, 56900, 71125, 79660, 99575, 142250, 199150, 284500, 398300, 497875, 995750, 1991500]

約数ペア:

[(1, 1991500), (2, 995750), (4, 497875), (5, 398300), (7, 284500), (10, 199150), (14, 142250), (20, 99575), (25, 79660), (28, 71125), (35, 56900), (50, 39830), (70, 28450), (100, 19915), (125, 15932), (140, 14225), (175, 11380), (250, 7966), (350, 5690), (500, 3983), (569, 3500), (700, 2845), (875, 2276), (1138, 1750)]