19307000

素因数分解:

$2^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:513

約数の個数: 64

約数和(自身を含む): 46332000

約数和(自身を除く): 27025000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 200, 215, 250, 344, 430, 449, 500, 860, 898, 1000, 1075, 1720, 1796, 2150, 2245, 3592, 4300, 4490, 5375, 8600, 8980, 10750, 11225, 17960, 19307, 21500, 22450, 38614, 43000, 44900, 56125, 77228, 89800, 96535, 112250, 154456, 193070, 224500, 386140, 449000, 482675, 772280, 965350, 1930700, 2413375, 3861400, 4826750, 9653500, 19307000]

約数ペア:

[(1, 19307000), (2, 9653500), (4, 4826750), (5, 3861400), (8, 2413375), (10, 1930700), (20, 965350), (25, 772280), (40, 482675), (43, 449000), (50, 386140), (86, 224500), (100, 193070), (125, 154456), (172, 112250), (200, 96535), (215, 89800), (250, 77228), (344, 56125), (430, 44900), (449, 43000), (500, 38614), (860, 22450), (898, 21500), (1000, 19307), (1075, 17960), (1720, 11225), (1796, 10750), (2150, 8980), (2245, 8600), (3592, 5375), (4300, 4490)]