18818176

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 41469120

約数和(自身を除く): 22650944

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 263, 344, 416, 526, 559, 688, 832, 1052, 1118, 1376, 1664, 2104, 2236, 2752, 3419, 4208, 4472, 5504, 6838, 8416, 8944, 11309, 13676, 16832, 17888, 22618, 27352, 33664, 35776, 45236, 54704, 71552, 90472, 109408, 147017, 180944, 218816, 294034, 361888, 437632, 588068, 723776, 1176136, 1447552, 2352272, 4704544, 9409088, 18818176]

約数ペア:

[(1, 18818176), (2, 9409088), (4, 4704544), (8, 2352272), (13, 1447552), (16, 1176136), (26, 723776), (32, 588068), (43, 437632), (52, 361888), (64, 294034), (86, 218816), (104, 180944), (128, 147017), (172, 109408), (208, 90472), (263, 71552), (344, 54704), (416, 45236), (526, 35776), (559, 33664), (688, 27352), (832, 22618), (1052, 17888), (1118, 16832), (1376, 13676), (1664, 11309), (2104, 8944), (2236, 8416), (2752, 6838), (3419, 5504), (4208, 4472)]