28204358

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4999}}^1$

素因数の和:5052

約数の個数: 32

約数和(自身を含む): 53760000

約数和(自身を除く): 25555642

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 4999, 5642, 9998, 34993, 64987, 69986, 129974, 154969, 309938, 454909, 909818, 1084783, 2014597, 2169566, 4029194, 14102179, 28204358]

約数ペア:

[(1, 28204358), (2, 14102179), (7, 4029194), (13, 2169566), (14, 2014597), (26, 1084783), (31, 909818), (62, 454909), (91, 309938), (182, 154969), (217, 129974), (403, 69986), (434, 64987), (806, 34993), (2821, 9998), (4999, 5642)]