28120855

素因数分解:

$5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:908

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 13351145

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 343, 665, 863, 931, 1715, 4315, 4655, 6041, 6517, 16397, 30205, 32585, 42287, 81985, 114779, 211435, 296009, 573895, 803453, 1480045, 4017265, 5624171, 28120855]

約数ペア:

[(1, 28120855), (5, 5624171), (7, 4017265), (19, 1480045), (35, 803453), (49, 573895), (95, 296009), (133, 211435), (245, 114779), (343, 81985), (665, 42287), (863, 32585), (931, 30205), (1715, 16397), (4315, 6517), (4655, 6041)]