18638464

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 41811840

約数和(自身を除く): 23173376

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 299, 368, 416, 487, 598, 736, 832, 974, 1196, 1472, 1664, 1948, 2392, 2944, 3896, 4784, 6331, 7792, 9568, 11201, 12662, 15584, 19136, 22402, 25324, 31168, 38272, 44804, 50648, 62336, 89608, 101296, 145613, 179216, 202592, 291226, 358432, 405184, 582452, 716864, 810368, 1164904, 1433728, 2329808, 4659616, 9319232, 18638464]

約数ペア:

[(1, 18638464), (2, 9319232), (4, 4659616), (8, 2329808), (13, 1433728), (16, 1164904), (23, 810368), (26, 716864), (32, 582452), (46, 405184), (52, 358432), (64, 291226), (92, 202592), (104, 179216), (128, 145613), (184, 101296), (208, 89608), (299, 62336), (368, 50648), (416, 44804), (487, 38272), (598, 31168), (736, 25324), (832, 22402), (974, 19136), (1196, 15584), (1472, 12662), (1664, 11201), (1948, 9568), (2392, 7792), (2944, 6331), (3896, 4784)]