640530828

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1$

素因数の和:526

約数の個数: 240

約数和(自身を含む): 2085652800

約数和(自身を除く): 1445121972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 37, 42, 51, 54, 63, 68, 74, 81, 84, 102, 108, 111, 119, 126, 148, 153, 162, 189, 204, 222, 238, 252, 259, 306, 324, 333, 357, 378, 444, 449, 459, 476, 518, 567, 612, 629, 666, 714, 756, 777, 898, 918, 999, 1036, 1071, 1134, 1258, 1332, 1347, 1377, 1428, 1554, 1796, 1836, 1887, 1998, 2142, 2268, 2331, 2516, 2694, 2754, 2997, 3108, 3143, 3213, 3774, 3996, 4041, 4284, 4403, 4662, 5388, 5508, 5661, 5994, 6286, 6426, 6993, 7548, 7633, 8082, 8806, 9324, 9429, 9639, 11322, 11988, 12123, 12572, 12852, 13209, 13986, 15266, 16164, 16613, 16983, 17612, 18858, 19278, 20979, 22644, 22899, 24246, 26418, 27972, 28287, 30532, 33226, 33966, 36369, 37716, 38556, 39627, 41958, 45798, 48492, 49839, 50949, 52836, 53431, 56574, 66452, 67932, 68697, 72738, 79254, 83916, 84861, 91596, 99678, 101898, 106862, 113148, 116291, 118881, 137394, 145476, 149517, 158508, 160293, 169722, 199356, 203796, 206091, 213724, 232582, 237762, 254583, 274788, 282421, 299034, 320586, 339444, 348873, 356643, 412182, 448551, 465164, 475524, 480879, 509166, 564842, 598068, 618273, 641172, 697746, 713286, 824364, 847263, 897102, 961758, 1018332, 1046619, 1129684, 1236546, 1345653, 1395492, 1426572, 1442637, 1694526, 1794204, 1923516, 1976947, 2093238, 2473092, 2541789, 2691306, 2885274, 3139857, 3389052, 3953894, 4186476, 4327911, 5083578, 5382612, 5770548, 5930841, 6279714, 7625367, 7907788, 8655822, 9419571, 10167156, 11861682, 12559428, 15250734, 17311644, 17792523, 18839142, 22876101, 23723364, 30501468, 35585046, 37678284, 45752202, 53377569, 71170092, 91504404, 106755138, 160132707, 213510276, 320265414, 640530828]

約数ペア:

[(1, 640530828), (2, 320265414), (3, 213510276), (4, 160132707), (6, 106755138), (7, 91504404), (9, 71170092), (12, 53377569), (14, 45752202), (17, 37678284), (18, 35585046), (21, 30501468), (27, 23723364), (28, 22876101), (34, 18839142), (36, 17792523), (37, 17311644), (42, 15250734), (51, 12559428), (54, 11861682), (63, 10167156), (68, 9419571), (74, 8655822), (81, 7907788), (84, 7625367), (102, 6279714), (108, 5930841), (111, 5770548), (119, 5382612), (126, 5083578), (148, 4327911), (153, 4186476), (162, 3953894), (189, 3389052), (204, 3139857), (222, 2885274), (238, 2691306), (252, 2541789), (259, 2473092), (306, 2093238), (324, 1976947), (333, 1923516), (357, 1794204), (378, 1694526), (444, 1442637), (449, 1426572), (459, 1395492), (476, 1345653), (518, 1236546), (567, 1129684), (612, 1046619), (629, 1018332), (666, 961758), (714, 897102), (756, 847263), (777, 824364), (898, 713286), (918, 697746), (999, 641172), (1036, 618273), (1071, 598068), (1134, 564842), (1258, 509166), (1332, 480879), (1347, 475524), (1377, 465164), (1428, 448551), (1554, 412182), (1796, 356643), (1836, 348873), (1887, 339444), (1998, 320586), (2142, 299034), (2268, 282421), (2331, 274788), (2516, 254583), (2694, 237762), (2754, 232582), (2997, 213724), (3108, 206091), (3143, 203796), (3213, 199356), (3774, 169722), (3996, 160293), (4041, 158508), (4284, 149517), (4403, 145476), (4662, 137394), (5388, 118881), (5508, 116291), (5661, 113148), (5994, 106862), (6286, 101898), (6426, 99678), (6993, 91596), (7548, 84861), (7633, 83916), (8082, 79254), (8806, 72738), (9324, 68697), (9429, 67932), (9639, 66452), (11322, 56574), (11988, 53431), (12123, 52836), (12572, 50949), (12852, 49839), (13209, 48492), (13986, 45798), (15266, 41958), (16164, 39627), (16613, 38556), (16983, 37716), (17612, 36369), (18858, 33966), (19278, 33226), (20979, 30532), (22644, 28287), (22899, 27972), (24246, 26418)]