213520720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{381287}}^1$

素因数の和:381307

約数の個数: 40

約数和(自身を含む): 567356544

約数和(自身を除く): 353835824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 381287, 762574, 1525148, 1906435, 2669009, 3050296, 3812870, 5338018, 6100592, 7625740, 10676036, 13345045, 15251480, 21352072, 26690090, 30502960, 42704144, 53380180, 106760360, 213520720]

約数ペア:

[(1, 213520720), (2, 106760360), (4, 53380180), (5, 42704144), (7, 30502960), (8, 26690090), (10, 21352072), (14, 15251480), (16, 13345045), (20, 10676036), (28, 7625740), (35, 6100592), (40, 5338018), (56, 3812870), (70, 3050296), (80, 2669009), (112, 1906435), (140, 1525148), (280, 762574), (560, 381287)]