311965920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{30949}}^1$

素因数の和:30977

約数の個数: 144

約数和(自身を含む): 1216706400

約数和(自身を除く): 904740480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 30949, 61898, 92847, 123796, 154745, 185694, 216643, 247592, 278541, 309490, 371388, 433286, 464235, 495184, 557082, 618980, 649929, 742776, 866572, 928470, 990368, 1083215, 1114164, 1237960, 1299858, 1392705, 1485552, 1733144, 1856940, 1949787, 2166430, 2228328, 2475920, 2599716, 2785410, 2971104, 3249645, 3466288, 3713880, 3899574, 4332860, 4456656, 4951840, 5199432, 5570820, 6499290, 6932576, 7427760, 7799148, 8665720, 8913312, 9748935, 10398864, 11141640, 12998580, 14855520, 15598296, 17331440, 19497870, 20797728, 22283280, 25997160, 31196592, 34662880, 38995740, 44566560, 51994320, 62393184, 77991480, 103988640, 155982960, 311965920]

約数ペア:

[(1, 311965920), (2, 155982960), (3, 103988640), (4, 77991480), (5, 62393184), (6, 51994320), (7, 44566560), (8, 38995740), (9, 34662880), (10, 31196592), (12, 25997160), (14, 22283280), (15, 20797728), (16, 19497870), (18, 17331440), (20, 15598296), (21, 14855520), (24, 12998580), (28, 11141640), (30, 10398864), (32, 9748935), (35, 8913312), (36, 8665720), (40, 7799148), (42, 7427760), (45, 6932576), (48, 6499290), (56, 5570820), (60, 5199432), (63, 4951840), (70, 4456656), (72, 4332860), (80, 3899574), (84, 3713880), (90, 3466288), (96, 3249645), (105, 2971104), (112, 2785410), (120, 2599716), (126, 2475920), (140, 2228328), (144, 2166430), (160, 1949787), (168, 1856940), (180, 1733144), (210, 1485552), (224, 1392705), (240, 1299858), (252, 1237960), (280, 1114164), (288, 1083215), (315, 990368), (336, 928470), (360, 866572), (420, 742776), (480, 649929), (504, 618980), (560, 557082), (630, 495184), (672, 464235), (720, 433286), (840, 371388), (1008, 309490), (1120, 278541), (1260, 247592), (1440, 216643), (1680, 185694), (2016, 154745), (2520, 123796), (3360, 92847), (5040, 61898), (10080, 30949)]