28042235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 37847040

約数和(自身を除く): 9804805

約数列:

[1, 5, 13, 43, 65, 79, 127, 215, 395, 559, 635, 1027, 1651, 2795, 3397, 5135, 5461, 8255, 10033, 16985, 27305, 44161, 50165, 70993, 130429, 220805, 354965, 431419, 652145, 2157095, 5608447, 28042235]

約数ペア:

[(1, 28042235), (5, 5608447), (13, 2157095), (43, 652145), (65, 431419), (79, 354965), (127, 220805), (215, 130429), (395, 70993), (559, 50165), (635, 44161), (1027, 27305), (1651, 16985), (2795, 10033), (3397, 8255), (5135, 5461)]