19968240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:215

約数の個数: 160

約数和(自身を含む): 67852800

約数和(自身を除く): 47884560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 29, 30, 38, 40, 48, 57, 58, 60, 76, 80, 87, 95, 114, 116, 120, 145, 151, 152, 174, 190, 228, 232, 240, 285, 290, 302, 304, 348, 380, 435, 453, 456, 464, 551, 570, 580, 604, 696, 755, 760, 870, 906, 912, 1102, 1140, 1160, 1208, 1392, 1510, 1520, 1653, 1740, 1812, 2204, 2265, 2280, 2320, 2416, 2755, 2869, 3020, 3306, 3480, 3624, 4379, 4408, 4530, 4560, 5510, 5738, 6040, 6612, 6960, 7248, 8265, 8607, 8758, 8816, 9060, 11020, 11476, 12080, 13137, 13224, 14345, 16530, 17214, 17516, 18120, 21895, 22040, 22952, 26274, 26448, 28690, 33060, 34428, 35032, 36240, 43035, 43790, 44080, 45904, 52548, 57380, 65685, 66120, 68856, 70064, 83201, 86070, 87580, 105096, 114760, 131370, 132240, 137712, 166402, 172140, 175160, 210192, 229520, 249603, 262740, 332804, 344280, 350320, 416005, 499206, 525480, 665608, 688560, 832010, 998412, 1050960, 1248015, 1331216, 1664020, 1996824, 2496030, 3328040, 3993648, 4992060, 6656080, 9984120, 19968240]

約数ペア:

[(1, 19968240), (2, 9984120), (3, 6656080), (4, 4992060), (5, 3993648), (6, 3328040), (8, 2496030), (10, 1996824), (12, 1664020), (15, 1331216), (16, 1248015), (19, 1050960), (20, 998412), (24, 832010), (29, 688560), (30, 665608), (38, 525480), (40, 499206), (48, 416005), (57, 350320), (58, 344280), (60, 332804), (76, 262740), (80, 249603), (87, 229520), (95, 210192), (114, 175160), (116, 172140), (120, 166402), (145, 137712), (151, 132240), (152, 131370), (174, 114760), (190, 105096), (228, 87580), (232, 86070), (240, 83201), (285, 70064), (290, 68856), (302, 66120), (304, 65685), (348, 57380), (380, 52548), (435, 45904), (453, 44080), (456, 43790), (464, 43035), (551, 36240), (570, 35032), (580, 34428), (604, 33060), (696, 28690), (755, 26448), (760, 26274), (870, 22952), (906, 22040), (912, 21895), (1102, 18120), (1140, 17516), (1160, 17214), (1208, 16530), (1392, 14345), (1510, 13224), (1520, 13137), (1653, 12080), (1740, 11476), (1812, 11020), (2204, 9060), (2265, 8816), (2280, 8758), (2320, 8607), (2416, 8265), (2755, 7248), (2869, 6960), (3020, 6612), (3306, 6040), (3480, 5738), (3624, 5510), (4379, 4560), (4408, 4530)]