78840120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{229}}^1$

素因数の和:413

約数の個数: 128

約数和(自身を含む): 251712000

約数和(自身を除く): 172871880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 151, 152, 190, 228, 229, 285, 302, 380, 453, 456, 458, 570, 604, 687, 755, 760, 906, 916, 1140, 1145, 1208, 1374, 1510, 1812, 1832, 2265, 2280, 2290, 2748, 2869, 3020, 3435, 3624, 4351, 4530, 4580, 5496, 5738, 6040, 6870, 8607, 8702, 9060, 9160, 11476, 13053, 13740, 14345, 17214, 17404, 18120, 21755, 22952, 26106, 27480, 28690, 34428, 34579, 34808, 43035, 43510, 52212, 57380, 65265, 68856, 69158, 86070, 87020, 103737, 104424, 114760, 130530, 138316, 172140, 172895, 174040, 207474, 261060, 276632, 344280, 345790, 414948, 518685, 522120, 657001, 691580, 829896, 1037370, 1314002, 1383160, 1971003, 2074740, 2628004, 3285005, 3942006, 4149480, 5256008, 6570010, 7884012, 9855015, 13140020, 15768024, 19710030, 26280040, 39420060, 78840120]

約数ペア:

[(1, 78840120), (2, 39420060), (3, 26280040), (4, 19710030), (5, 15768024), (6, 13140020), (8, 9855015), (10, 7884012), (12, 6570010), (15, 5256008), (19, 4149480), (20, 3942006), (24, 3285005), (30, 2628004), (38, 2074740), (40, 1971003), (57, 1383160), (60, 1314002), (76, 1037370), (95, 829896), (114, 691580), (120, 657001), (151, 522120), (152, 518685), (190, 414948), (228, 345790), (229, 344280), (285, 276632), (302, 261060), (380, 207474), (453, 174040), (456, 172895), (458, 172140), (570, 138316), (604, 130530), (687, 114760), (755, 104424), (760, 103737), (906, 87020), (916, 86070), (1140, 69158), (1145, 68856), (1208, 65265), (1374, 57380), (1510, 52212), (1812, 43510), (1832, 43035), (2265, 34808), (2280, 34579), (2290, 34428), (2748, 28690), (2869, 27480), (3020, 26106), (3435, 22952), (3624, 21755), (4351, 18120), (4530, 17404), (4580, 17214), (5496, 14345), (5738, 13740), (6040, 13053), (6870, 11476), (8607, 9160), (8702, 9060)]