20570200

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2099}}^1$

素因数の和:2129

約数の個数: 72

約数和(自身を含む): 55660500

約数和(自身を除く): 35090300

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, 2099, 2450, 4198, 4900, 8396, 9800, 10495, 14693, 16792, 20990, 29386, 41980, 52475, 58772, 73465, 83960, 102851, 104950, 117544, 146930, 205702, 209900, 293860, 367325, 411404, 419800, 514255, 587720, 734650, 822808, 1028510, 1469300, 2057020, 2571275, 2938600, 4114040, 5142550, 10285100, 20570200]

約数ペア:

[(1, 20570200), (2, 10285100), (4, 5142550), (5, 4114040), (7, 2938600), (8, 2571275), (10, 2057020), (14, 1469300), (20, 1028510), (25, 822808), (28, 734650), (35, 587720), (40, 514255), (49, 419800), (50, 411404), (56, 367325), (70, 293860), (98, 209900), (100, 205702), (140, 146930), (175, 117544), (196, 104950), (200, 102851), (245, 83960), (280, 73465), (350, 58772), (392, 52475), (490, 41980), (700, 29386), (980, 20990), (1225, 16792), (1400, 14693), (1960, 10495), (2099, 9800), (2450, 8396), (4198, 4900)]