28042880

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1019}}^1$

素因数の和:1081

約数の個数: 64

約数和(自身を含む): 68666400

約数和(自身を除く): 40623520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 1019, 1376, 1720, 2038, 2752, 3440, 4076, 5095, 5504, 6880, 8152, 10190, 13760, 16304, 20380, 27520, 32608, 40760, 43817, 65216, 81520, 87634, 130432, 163040, 175268, 219085, 326080, 350536, 438170, 652160, 701072, 876340, 1402144, 1752680, 2804288, 3505360, 5608576, 7010720, 14021440, 28042880]

約数ペア:

[(1, 28042880), (2, 14021440), (4, 7010720), (5, 5608576), (8, 3505360), (10, 2804288), (16, 1752680), (20, 1402144), (32, 876340), (40, 701072), (43, 652160), (64, 438170), (80, 350536), (86, 326080), (128, 219085), (160, 175268), (172, 163040), (215, 130432), (320, 87634), (344, 81520), (430, 65216), (640, 43817), (688, 40760), (860, 32608), (1019, 27520), (1376, 20380), (1720, 16304), (2038, 13760), (2752, 10190), (3440, 8152), (4076, 6880), (5095, 5504)]