20864200

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2129}}^1$

素因数の和:2159

約数の個数: 72

約数和(自身を含む): 56455650

約数和(自身を除く): 35591450

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2129, 2450, 4258, 4900, 8516, 9800, 10645, 14903, 17032, 21290, 29806, 42580, 53225, 59612, 74515, 85160, 104321, 106450, 119224, 149030, 208642, 212900, 298060, 372575, 417284, 425800, 521605, 596120, 745150, 834568, 1043210, 1490300, 2086420, 2608025, 2980600, 4172840, 5216050, 10432100, 20864200]

約数ペア:

[(1, 20864200), (2, 10432100), (4, 5216050), (5, 4172840), (7, 2980600), (8, 2608025), (10, 2086420), (14, 1490300), (20, 1043210), (25, 834568), (28, 745150), (35, 596120), (40, 521605), (49, 425800), (50, 417284), (56, 372575), (70, 298060), (98, 212900), (100, 208642), (140, 149030), (175, 119224), (196, 106450), (200, 104321), (245, 85160), (280, 74515), (350, 59612), (392, 53225), (490, 42580), (700, 29806), (980, 21290), (1225, 17032), (1400, 14903), (1960, 10645), (2129, 9800), (2450, 8516), (4258, 4900)]