28109440

素因数分解:

$2^7\times 5^1\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 67858560

約数和(自身を除く): 39749120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 263, 320, 334, 526, 640, 668, 835, 1052, 1315, 1336, 1670, 2104, 2630, 2672, 3340, 4208, 5260, 5344, 6680, 8416, 10520, 10688, 13360, 16832, 21040, 21376, 26720, 33664, 42080, 43921, 53440, 84160, 87842, 106880, 168320, 175684, 219605, 351368, 439210, 702736, 878420, 1405472, 1756840, 2810944, 3513680, 5621888, 7027360, 14054720, 28109440]

約数ペア:

[(1, 28109440), (2, 14054720), (4, 7027360), (5, 5621888), (8, 3513680), (10, 2810944), (16, 1756840), (20, 1405472), (32, 878420), (40, 702736), (64, 439210), (80, 351368), (128, 219605), (160, 175684), (167, 168320), (263, 106880), (320, 87842), (334, 84160), (526, 53440), (640, 43921), (668, 42080), (835, 33664), (1052, 26720), (1315, 21376), (1336, 21040), (1670, 16832), (2104, 13360), (2630, 10688), (2672, 10520), (3340, 8416), (4208, 6680), (5260, 5344)]