28287400

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{2111}}^1$

素因数の和:2194

約数の個数: 48

約数和(自身を含む): 66781440

約数和(自身を除く): 38494040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 200, 268, 335, 536, 670, 1340, 1675, 2111, 2680, 3350, 4222, 6700, 8444, 10555, 13400, 16888, 21110, 42220, 52775, 84440, 105550, 141437, 211100, 282874, 422200, 565748, 707185, 1131496, 1414370, 2828740, 3535925, 5657480, 7071850, 14143700, 28287400]

約数ペア:

[(1, 28287400), (2, 14143700), (4, 7071850), (5, 5657480), (8, 3535925), (10, 2828740), (20, 1414370), (25, 1131496), (40, 707185), (50, 565748), (67, 422200), (100, 282874), (134, 211100), (200, 141437), (268, 105550), (335, 84440), (536, 52775), (670, 42220), (1340, 21110), (1675, 16888), (2111, 13400), (2680, 10555), (3350, 8444), (4222, 6700)]