20828200

素因数分解:

$2^3\times 5^2\times {\mathrm{223}}^1\times {\mathrm{467}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 27918680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 223, 446, 467, 892, 934, 1115, 1784, 1868, 2230, 2335, 3736, 4460, 4670, 5575, 8920, 9340, 11150, 11675, 18680, 22300, 23350, 44600, 46700, 93400, 104141, 208282, 416564, 520705, 833128, 1041410, 2082820, 2603525, 4165640, 5207050, 10414100, 20828200]

約数ペア:

[(1, 20828200), (2, 10414100), (4, 5207050), (5, 4165640), (8, 2603525), (10, 2082820), (20, 1041410), (25, 833128), (40, 520705), (50, 416564), (100, 208282), (200, 104141), (223, 93400), (446, 46700), (467, 44600), (892, 23350), (934, 22300), (1115, 18680), (1784, 11675), (1868, 11150), (2230, 9340), (2335, 8920), (3736, 5575), (4460, 4670)]