51457840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13127}}^1$

素因数の和:13154

約数の個数: 60

約数和(自身を含む): 139183056

約数和(自身を除く): 87725216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 13127, 26254, 52508, 65635, 91889, 105016, 131270, 183778, 210032, 262540, 367556, 459445, 525080, 643223, 735112, 918890, 1050160, 1286446, 1470224, 1837780, 2572892, 3216115, 3675560, 5145784, 6432230, 7351120, 10291568, 12864460, 25728920, 51457840]

約数ペア:

[(1, 51457840), (2, 25728920), (4, 12864460), (5, 10291568), (7, 7351120), (8, 6432230), (10, 5145784), (14, 3675560), (16, 3216115), (20, 2572892), (28, 1837780), (35, 1470224), (40, 1286446), (49, 1050160), (56, 918890), (70, 735112), (80, 643223), (98, 525080), (112, 459445), (140, 367556), (196, 262540), (245, 210032), (280, 183778), (392, 131270), (490, 105016), (560, 91889), (784, 65635), (980, 52508), (1960, 26254), (3920, 13127)]