20131072

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 45327744

約数和(自身を除く): 25196672

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 256, 263, 299, 368, 416, 526, 598, 736, 832, 1052, 1196, 1472, 1664, 2104, 2392, 2944, 3328, 3419, 4208, 4784, 5888, 6049, 6838, 8416, 9568, 12098, 13676, 16832, 19136, 24196, 27352, 33664, 38272, 48392, 54704, 67328, 76544, 78637, 96784, 109408, 157274, 193568, 218816, 314548, 387136, 437632, 629096, 774272, 875264, 1258192, 1548544, 2516384, 5032768, 10065536, 20131072]

約数ペア:

[(1, 20131072), (2, 10065536), (4, 5032768), (8, 2516384), (13, 1548544), (16, 1258192), (23, 875264), (26, 774272), (32, 629096), (46, 437632), (52, 387136), (64, 314548), (92, 218816), (104, 193568), (128, 157274), (184, 109408), (208, 96784), (256, 78637), (263, 76544), (299, 67328), (368, 54704), (416, 48392), (526, 38272), (598, 33664), (736, 27352), (832, 24196), (1052, 19136), (1196, 16832), (1472, 13676), (1664, 12098), (2104, 9568), (2392, 8416), (2944, 6838), (3328, 6049), (3419, 5888), (4208, 4784)]