28086800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1433}}^1$

素因数の和:1465

約数の個数: 90

約数和(自身を含む): 78550218

約数和(自身を除く): 50463418

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1433, 1960, 2450, 2800, 2866, 3920, 4900, 5732, 7165, 9800, 10031, 11464, 14330, 19600, 20062, 22928, 28660, 35825, 40124, 50155, 57320, 70217, 71650, 80248, 100310, 114640, 140434, 143300, 160496, 200620, 250775, 280868, 286600, 351085, 401240, 501550, 561736, 573200, 702170, 802480, 1003100, 1123472, 1404340, 1755425, 2006200, 2808680, 3510850, 4012400, 5617360, 7021700, 14043400, 28086800]

約数ペア:

[(1, 28086800), (2, 14043400), (4, 7021700), (5, 5617360), (7, 4012400), (8, 3510850), (10, 2808680), (14, 2006200), (16, 1755425), (20, 1404340), (25, 1123472), (28, 1003100), (35, 802480), (40, 702170), (49, 573200), (50, 561736), (56, 501550), (70, 401240), (80, 351085), (98, 286600), (100, 280868), (112, 250775), (140, 200620), (175, 160496), (196, 143300), (200, 140434), (245, 114640), (280, 100310), (350, 80248), (392, 71650), (400, 70217), (490, 57320), (560, 50155), (700, 40124), (784, 35825), (980, 28660), (1225, 22928), (1400, 20062), (1433, 19600), (1960, 14330), (2450, 11464), (2800, 10031), (2866, 9800), (3920, 7165), (4900, 5732)]