20751120

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:774

約数の個数: 160

約数和(自身を含む): 77078400

約数和(自身を除く): 56327280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 739, 780, 936, 1040, 1080, 1170, 1404, 1478, 1560, 1755, 1872, 2160, 2217, 2340, 2808, 2956, 3120, 3510, 3695, 4434, 4680, 5616, 5912, 6651, 7020, 7390, 8868, 9360, 9607, 11085, 11824, 13302, 14040, 14780, 17736, 19214, 19953, 22170, 26604, 28080, 28821, 29560, 33255, 35472, 38428, 39906, 44340, 48035, 53208, 57642, 59120, 66510, 76856, 79812, 86463, 88680, 96070, 99765, 106416, 115284, 133020, 144105, 153712, 159624, 172926, 177360, 192140, 199530, 230568, 259389, 266040, 288210, 319248, 345852, 384280, 399060, 432315, 461136, 518778, 532080, 576420, 691704, 768560, 798120, 864630, 1037556, 1152840, 1296945, 1383408, 1596240, 1729260, 2075112, 2305680, 2593890, 3458520, 4150224, 5187780, 6917040, 10375560, 20751120]

約数ペア:

[(1, 20751120), (2, 10375560), (3, 6917040), (4, 5187780), (5, 4150224), (6, 3458520), (8, 2593890), (9, 2305680), (10, 2075112), (12, 1729260), (13, 1596240), (15, 1383408), (16, 1296945), (18, 1152840), (20, 1037556), (24, 864630), (26, 798120), (27, 768560), (30, 691704), (36, 576420), (39, 532080), (40, 518778), (45, 461136), (48, 432315), (52, 399060), (54, 384280), (60, 345852), (65, 319248), (72, 288210), (78, 266040), (80, 259389), (90, 230568), (104, 199530), (108, 192140), (117, 177360), (120, 172926), (130, 159624), (135, 153712), (144, 144105), (156, 133020), (180, 115284), (195, 106416), (208, 99765), (216, 96070), (234, 88680), (240, 86463), (260, 79812), (270, 76856), (312, 66510), (351, 59120), (360, 57642), (390, 53208), (432, 48035), (468, 44340), (520, 39906), (540, 38428), (585, 35472), (624, 33255), (702, 29560), (720, 28821), (739, 28080), (780, 26604), (936, 22170), (1040, 19953), (1080, 19214), (1170, 17736), (1404, 14780), (1478, 14040), (1560, 13302), (1755, 11824), (1872, 11085), (2160, 9607), (2217, 9360), (2340, 8868), (2808, 7390), (2956, 7020), (3120, 6651), (3510, 5912), (3695, 5616), (4434, 4680)]