80520400

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{4283}}^1$

素因数の和:4348

約数の個数: 60

約数和(自身を含む): 197612352

約数和(自身を除く): 117091952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1175, 1880, 2350, 3760, 4283, 4700, 8566, 9400, 17132, 18800, 21415, 34264, 42830, 68528, 85660, 107075, 171320, 201301, 214150, 342640, 402602, 428300, 805204, 856600, 1006505, 1610408, 1713200, 2013010, 3220816, 4026020, 5032525, 8052040, 10065050, 16104080, 20130100, 40260200, 80520400]

約数ペア:

[(1, 80520400), (2, 40260200), (4, 20130100), (5, 16104080), (8, 10065050), (10, 8052040), (16, 5032525), (20, 4026020), (25, 3220816), (40, 2013010), (47, 1713200), (50, 1610408), (80, 1006505), (94, 856600), (100, 805204), (188, 428300), (200, 402602), (235, 342640), (376, 214150), (400, 201301), (470, 171320), (752, 107075), (940, 85660), (1175, 68528), (1880, 42830), (2350, 34264), (3760, 21415), (4283, 18800), (4700, 17132), (8566, 9400)]