20906200

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 56469600

約数和(自身を除く): 35563400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 109, 137, 140, 175, 200, 218, 274, 280, 350, 436, 545, 548, 685, 700, 763, 872, 959, 1090, 1096, 1370, 1400, 1526, 1918, 2180, 2725, 2740, 3052, 3425, 3815, 3836, 4360, 4795, 5450, 5480, 6104, 6850, 7630, 7672, 9590, 10900, 13700, 14933, 15260, 19075, 19180, 21800, 23975, 27400, 29866, 30520, 38150, 38360, 47950, 59732, 74665, 76300, 95900, 104531, 119464, 149330, 152600, 191800, 209062, 298660, 373325, 418124, 522655, 597320, 746650, 836248, 1045310, 1493300, 2090620, 2613275, 2986600, 4181240, 5226550, 10453100, 20906200]

約数ペア:

[(1, 20906200), (2, 10453100), (4, 5226550), (5, 4181240), (7, 2986600), (8, 2613275), (10, 2090620), (14, 1493300), (20, 1045310), (25, 836248), (28, 746650), (35, 597320), (40, 522655), (50, 418124), (56, 373325), (70, 298660), (100, 209062), (109, 191800), (137, 152600), (140, 149330), (175, 119464), (200, 104531), (218, 95900), (274, 76300), (280, 74665), (350, 59732), (436, 47950), (545, 38360), (548, 38150), (685, 30520), (700, 29866), (763, 27400), (872, 23975), (959, 21800), (1090, 19180), (1096, 19075), (1370, 15260), (1400, 14933), (1526, 13700), (1918, 10900), (2180, 9590), (2725, 7672), (2740, 7630), (3052, 6850), (3425, 6104), (3815, 5480), (3836, 5450), (4360, 4795)]