28190000

素因数分解:

$2^4\times 5^4\times {\mathrm{2819}}^1$

素因数の和:2847

約数の個数: 50

約数和(自身を含む): 68275020

約数和(自身を除く): 40085020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 2819, 5000, 5638, 10000, 11276, 14095, 22552, 28190, 45104, 56380, 70475, 112760, 140950, 225520, 281900, 352375, 563800, 704750, 1127600, 1409500, 1761875, 2819000, 3523750, 5638000, 7047500, 14095000, 28190000]

約数ペア:

[(1, 28190000), (2, 14095000), (4, 7047500), (5, 5638000), (8, 3523750), (10, 2819000), (16, 1761875), (20, 1409500), (25, 1127600), (40, 704750), (50, 563800), (80, 352375), (100, 281900), (125, 225520), (200, 140950), (250, 112760), (400, 70475), (500, 56380), (625, 45104), (1000, 28190), (1250, 22552), (2000, 14095), (2500, 11276), (2819, 10000), (5000, 5638)]