81457404

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:348

約数の個数: 144

約数和(自身を含む): 243038880

約数和(自身を除く): 161581476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 29, 34, 42, 49, 51, 58, 68, 84, 87, 98, 102, 116, 119, 147, 174, 196, 203, 204, 238, 281, 294, 348, 357, 406, 476, 493, 562, 588, 609, 714, 812, 833, 843, 986, 1124, 1218, 1421, 1428, 1479, 1666, 1686, 1967, 1972, 2436, 2499, 2842, 2958, 3332, 3372, 3451, 3934, 4263, 4777, 4998, 5684, 5901, 5916, 6902, 7868, 8149, 8526, 9554, 9996, 10353, 11802, 13769, 13804, 14331, 16298, 17052, 19108, 20706, 23604, 24157, 24447, 27538, 28662, 32596, 33439, 41307, 41412, 48314, 48894, 55076, 57043, 57324, 66878, 72471, 82614, 96628, 97788, 100317, 114086, 133756, 138533, 144942, 165228, 171129, 200634, 228172, 234073, 277066, 289884, 342258, 399301, 401268, 415599, 468146, 554132, 684516, 702219, 798602, 831198, 936292, 969731, 1197903, 1404438, 1597204, 1662396, 1939462, 2395806, 2808876, 2909193, 3878924, 4791612, 5818386, 6788117, 11636772, 13576234, 20364351, 27152468, 40728702, 81457404]

約数ペア:

[(1, 81457404), (2, 40728702), (3, 27152468), (4, 20364351), (6, 13576234), (7, 11636772), (12, 6788117), (14, 5818386), (17, 4791612), (21, 3878924), (28, 2909193), (29, 2808876), (34, 2395806), (42, 1939462), (49, 1662396), (51, 1597204), (58, 1404438), (68, 1197903), (84, 969731), (87, 936292), (98, 831198), (102, 798602), (116, 702219), (119, 684516), (147, 554132), (174, 468146), (196, 415599), (203, 401268), (204, 399301), (238, 342258), (281, 289884), (294, 277066), (348, 234073), (357, 228172), (406, 200634), (476, 171129), (493, 165228), (562, 144942), (588, 138533), (609, 133756), (714, 114086), (812, 100317), (833, 97788), (843, 96628), (986, 82614), (1124, 72471), (1218, 66878), (1421, 57324), (1428, 57043), (1479, 55076), (1666, 48894), (1686, 48314), (1967, 41412), (1972, 41307), (2436, 33439), (2499, 32596), (2842, 28662), (2958, 27538), (3332, 24447), (3372, 24157), (3451, 23604), (3934, 20706), (4263, 19108), (4777, 17052), (4998, 16298), (5684, 14331), (5901, 13804), (5916, 13769), (6902, 11802), (7868, 10353), (8149, 9996), (8526, 9554)]