25257856

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 55606320

約数和(自身を除く): 30348464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 344, 353, 416, 559, 688, 706, 832, 1118, 1376, 1412, 1664, 2236, 2752, 2824, 4472, 4589, 5504, 5648, 8944, 9178, 11296, 15179, 17888, 18356, 22592, 30358, 35776, 36712, 45184, 60716, 71552, 73424, 121432, 146848, 197327, 242864, 293696, 394654, 485728, 587392, 789308, 971456, 1578616, 1942912, 3157232, 6314464, 12628928, 25257856]

約数ペア:

[(1, 25257856), (2, 12628928), (4, 6314464), (8, 3157232), (13, 1942912), (16, 1578616), (26, 971456), (32, 789308), (43, 587392), (52, 485728), (64, 394654), (86, 293696), (104, 242864), (128, 197327), (172, 146848), (208, 121432), (344, 73424), (353, 71552), (416, 60716), (559, 45184), (688, 36712), (706, 35776), (832, 30358), (1118, 22592), (1376, 18356), (1412, 17888), (1664, 15179), (2236, 11296), (2752, 9178), (2824, 8944), (4472, 5648), (4589, 5504)]