20207360

素因数分解:

$2^8\times 5^1\times {\mathrm{15787}}^1$

素因数の和:15808

約数の個数: 36

約数和(自身を含む): 48406008

約数和(自身を除く): 28198648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15787, 31574, 63148, 78935, 126296, 157870, 252592, 315740, 505184, 631480, 1010368, 1262960, 2020736, 2525920, 4041472, 5051840, 10103680, 20207360]

約数ペア:

[(1, 20207360), (2, 10103680), (4, 5051840), (5, 4041472), (8, 2525920), (10, 2020736), (16, 1262960), (20, 1010368), (32, 631480), (40, 505184), (64, 315740), (80, 252592), (128, 157870), (160, 126296), (256, 78935), (320, 63148), (640, 31574), (1280, 15787)]