81960120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6899}}^1$

素因数の和:6930

約数の個数: 128

約数和(自身を含む): 298080000

約数和(自身を除く): 216119880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 216, 220, 264, 270, 297, 330, 360, 396, 440, 495, 540, 594, 660, 792, 990, 1080, 1188, 1320, 1485, 1980, 2376, 2970, 3960, 5940, 6899, 11880, 13798, 20697, 27596, 34495, 41394, 55192, 62091, 68990, 75889, 82788, 103485, 124182, 137980, 151778, 165576, 186273, 206970, 227667, 248364, 275960, 303556, 310455, 372546, 379445, 413940, 455334, 496728, 607112, 620910, 683001, 745092, 758890, 827880, 910668, 931365, 1138335, 1241820, 1366002, 1490184, 1517780, 1821336, 1862730, 2049003, 2276670, 2483640, 2732004, 3035560, 3415005, 3725460, 4098006, 4553340, 5464008, 6830010, 7450920, 8196012, 9106680, 10245015, 13660020, 16392024, 20490030, 27320040, 40980060, 81960120]

約数ペア:

[(1, 81960120), (2, 40980060), (3, 27320040), (4, 20490030), (5, 16392024), (6, 13660020), (8, 10245015), (9, 9106680), (10, 8196012), (11, 7450920), (12, 6830010), (15, 5464008), (18, 4553340), (20, 4098006), (22, 3725460), (24, 3415005), (27, 3035560), (30, 2732004), (33, 2483640), (36, 2276670), (40, 2049003), (44, 1862730), (45, 1821336), (54, 1517780), (55, 1490184), (60, 1366002), (66, 1241820), (72, 1138335), (88, 931365), (90, 910668), (99, 827880), (108, 758890), (110, 745092), (120, 683001), (132, 620910), (135, 607112), (165, 496728), (180, 455334), (198, 413940), (216, 379445), (220, 372546), (264, 310455), (270, 303556), (297, 275960), (330, 248364), (360, 227667), (396, 206970), (440, 186273), (495, 165576), (540, 151778), (594, 137980), (660, 124182), (792, 103485), (990, 82788), (1080, 75889), (1188, 68990), (1320, 62091), (1485, 55192), (1980, 41394), (2376, 34495), (2970, 27596), (3960, 20697), (5940, 13798), (6899, 11880)]