81537270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 221616000

約数和(自身を除く): 140078730

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 29, 30, 34, 37, 51, 58, 74, 85, 87, 102, 111, 145, 149, 170, 174, 185, 222, 255, 290, 298, 370, 435, 447, 493, 510, 555, 629, 745, 870, 894, 986, 1073, 1110, 1258, 1479, 1490, 1887, 2146, 2235, 2465, 2533, 2958, 3145, 3219, 3774, 4321, 4470, 4930, 5066, 5365, 5513, 6290, 6438, 7395, 7599, 8642, 9435, 10730, 11026, 12665, 12963, 14790, 15198, 16095, 16539, 18241, 18870, 21605, 25330, 25926, 27565, 32190, 33078, 36482, 37995, 43210, 54723, 55130, 64815, 73457, 75990, 82695, 91205, 93721, 109446, 129630, 146914, 159877, 165390, 182410, 187442, 220371, 273615, 281163, 319754, 367285, 440742, 468605, 479631, 547230, 562326, 734570, 799385, 937210, 959262, 1101855, 1405815, 1598770, 2203710, 2398155, 2717909, 2811630, 4796310, 5435818, 8153727, 13589545, 16307454, 27179090, 40768635, 81537270]

約数ペア:

[(1, 81537270), (2, 40768635), (3, 27179090), (5, 16307454), (6, 13589545), (10, 8153727), (15, 5435818), (17, 4796310), (29, 2811630), (30, 2717909), (34, 2398155), (37, 2203710), (51, 1598770), (58, 1405815), (74, 1101855), (85, 959262), (87, 937210), (102, 799385), (111, 734570), (145, 562326), (149, 547230), (170, 479631), (174, 468605), (185, 440742), (222, 367285), (255, 319754), (290, 281163), (298, 273615), (370, 220371), (435, 187442), (447, 182410), (493, 165390), (510, 159877), (555, 146914), (629, 129630), (745, 109446), (870, 93721), (894, 91205), (986, 82695), (1073, 75990), (1110, 73457), (1258, 64815), (1479, 55130), (1490, 54723), (1887, 43210), (2146, 37995), (2235, 36482), (2465, 33078), (2533, 32190), (2958, 27565), (3145, 25926), (3219, 25330), (3774, 21605), (4321, 18870), (4470, 18241), (4930, 16539), (5066, 16095), (5365, 15198), (5513, 14790), (6290, 12963), (6438, 12665), (7395, 11026), (7599, 10730), (8642, 9435)]