2189500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 4979520

約数和(自身を除く): 2790020

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 151, 250, 290, 302, 500, 580, 604, 725, 755, 1450, 1510, 2900, 3020, 3625, 3775, 4379, 7250, 7550, 8758, 14500, 15100, 17516, 18875, 21895, 37750, 43790, 75500, 87580, 109475, 218950, 437900, 547375, 1094750, 2189500]

約数ペア:

[(1, 2189500), (2, 1094750), (4, 547375), (5, 437900), (10, 218950), (20, 109475), (25, 87580), (29, 75500), (50, 43790), (58, 37750), (100, 21895), (116, 18875), (125, 17516), (145, 15100), (151, 14500), (250, 8758), (290, 7550), (302, 7250), (500, 4379), (580, 3775), (604, 3625), (725, 3020), (755, 2900), (1450, 1510)]