12879846680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1\times {\mathrm{541}}^1$

素因数の和:949

約数の個数: 128

約数和(自身を含む): 31075591680

約数和(自身を除く): 18195745000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 157, 170, 223, 314, 340, 446, 541, 628, 680, 785, 892, 1082, 1115, 1256, 1570, 1784, 2164, 2230, 2669, 2705, 3140, 3791, 4328, 4460, 5338, 5410, 6280, 7582, 8920, 9197, 10676, 10820, 13345, 15164, 18394, 18955, 21352, 21640, 26690, 30328, 35011, 36788, 37910, 45985, 53380, 70022, 73576, 75820, 84937, 91970, 106760, 120643, 140044, 151640, 169874, 175055, 183940, 241286, 280088, 339748, 350110, 367880, 424685, 482572, 595187, 603215, 679496, 700220, 849370, 965144, 1190374, 1206430, 1400440, 1443929, 1698740, 2050931, 2380748, 2412860, 2887858, 2975935, 3397480, 4101862, 4761496, 4825720, 5775716, 5951870, 7219645, 8203724, 10254655, 11551432, 11903740, 14439290, 16407448, 18940951, 20509310, 23807480, 28878580, 37881902, 41018620, 57757160, 75763804, 82037240, 94704755, 151527608, 189409510, 321996167, 378819020, 643992334, 757638040, 1287984668, 1609980835, 2575969336, 3219961670, 6439923340, 12879846680]

約数ペア:

[(1, 12879846680), (2, 6439923340), (4, 3219961670), (5, 2575969336), (8, 1609980835), (10, 1287984668), (17, 757638040), (20, 643992334), (34, 378819020), (40, 321996167), (68, 189409510), (85, 151527608), (136, 94704755), (157, 82037240), (170, 75763804), (223, 57757160), (314, 41018620), (340, 37881902), (446, 28878580), (541, 23807480), (628, 20509310), (680, 18940951), (785, 16407448), (892, 14439290), (1082, 11903740), (1115, 11551432), (1256, 10254655), (1570, 8203724), (1784, 7219645), (2164, 5951870), (2230, 5775716), (2669, 4825720), (2705, 4761496), (3140, 4101862), (3791, 3397480), (4328, 2975935), (4460, 2887858), (5338, 2412860), (5410, 2380748), (6280, 2050931), (7582, 1698740), (8920, 1443929), (9197, 1400440), (10676, 1206430), (10820, 1190374), (13345, 965144), (15164, 849370), (18394, 700220), (18955, 679496), (21352, 603215), (21640, 595187), (26690, 482572), (30328, 424685), (35011, 367880), (36788, 350110), (37910, 339748), (45985, 280088), (53380, 241286), (70022, 183940), (73576, 175055), (75820, 169874), (84937, 151640), (91970, 140044), (106760, 120643)]