131611280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 347120640

約数和(自身を除く): 215509360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 47, 58, 68, 71, 80, 85, 94, 116, 136, 142, 145, 170, 188, 232, 235, 272, 284, 290, 340, 355, 376, 464, 470, 493, 568, 580, 680, 710, 752, 799, 940, 986, 1136, 1160, 1207, 1360, 1363, 1420, 1598, 1880, 1972, 2059, 2320, 2414, 2465, 2726, 2840, 3196, 3337, 3760, 3944, 3995, 4118, 4828, 4930, 5452, 5680, 6035, 6392, 6674, 6815, 7888, 7990, 8236, 9656, 9860, 10295, 10904, 12070, 12784, 13348, 13630, 15980, 16472, 16685, 19312, 19720, 20590, 21808, 23171, 24140, 26696, 27260, 31960, 32944, 33370, 35003, 39440, 41180, 46342, 48280, 53392, 54520, 56729, 63920, 66740, 70006, 82360, 92684, 96560, 96773, 109040, 113458, 115855, 133480, 140012, 164720, 175015, 185368, 193546, 226916, 231710, 266960, 280024, 283645, 350030, 370736, 387092, 453832, 463420, 483865, 560048, 567290, 700060, 774184, 907664, 926840, 967730, 1134580, 1400120, 1548368, 1645141, 1853680, 1935460, 2269160, 2800240, 3290282, 3870920, 4538320, 6580564, 7741840, 8225705, 13161128, 16451410, 26322256, 32902820, 65805640, 131611280]

約数ペア:

[(1, 131611280), (2, 65805640), (4, 32902820), (5, 26322256), (8, 16451410), (10, 13161128), (16, 8225705), (17, 7741840), (20, 6580564), (29, 4538320), (34, 3870920), (40, 3290282), (47, 2800240), (58, 2269160), (68, 1935460), (71, 1853680), (80, 1645141), (85, 1548368), (94, 1400120), (116, 1134580), (136, 967730), (142, 926840), (145, 907664), (170, 774184), (188, 700060), (232, 567290), (235, 560048), (272, 483865), (284, 463420), (290, 453832), (340, 387092), (355, 370736), (376, 350030), (464, 283645), (470, 280024), (493, 266960), (568, 231710), (580, 226916), (680, 193546), (710, 185368), (752, 175015), (799, 164720), (940, 140012), (986, 133480), (1136, 115855), (1160, 113458), (1207, 109040), (1360, 96773), (1363, 96560), (1420, 92684), (1598, 82360), (1880, 70006), (1972, 66740), (2059, 63920), (2320, 56729), (2414, 54520), (2465, 53392), (2726, 48280), (2840, 46342), (3196, 41180), (3337, 39440), (3760, 35003), (3944, 33370), (3995, 32944), (4118, 31960), (4828, 27260), (4930, 26696), (5452, 24140), (5680, 23171), (6035, 21808), (6392, 20590), (6674, 19720), (6815, 19312), (7888, 16685), (7990, 16472), (8236, 15980), (9656, 13630), (9860, 13348), (10295, 12784), (10904, 12070)]