256988571849

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{197}}^1\times {\mathrm{239}}^1\times {\mathrm{443}}^1$

素因数の和:959

約数の個数: 72

約数和(自身を含む): 385919614080

約数和(自身を除く): 128931042231

約数列:

[1, 3, 9, 37, 111, 197, 239, 333, 443, 591, 717, 1329, 1369, 1773, 2151, 3987, 4107, 7289, 8843, 12321, 16391, 21867, 26529, 47083, 49173, 65601, 79587, 87271, 105877, 141249, 147519, 261813, 269693, 317631, 327191, 423747, 606467, 785439, 809079, 952893, 981573, 1742071, 1819401, 2427237, 2944719, 3229027, 3917449, 5226213, 5458203, 9687081, 11752347, 15678639, 20857769, 29061243, 35257041, 62573307, 64456627, 119473999, 144945613, 187719921, 193369881, 358421997, 434836839, 580109643, 771737453, 1075265991, 1304510517, 2315212359, 6945637077, 28554285761, 85662857283, 256988571849]

約数ペア:

[(1, 256988571849), (3, 85662857283), (9, 28554285761), (37, 6945637077), (111, 2315212359), (197, 1304510517), (239, 1075265991), (333, 771737453), (443, 580109643), (591, 434836839), (717, 358421997), (1329, 193369881), (1369, 187719921), (1773, 144945613), (2151, 119473999), (3987, 64456627), (4107, 62573307), (7289, 35257041), (8843, 29061243), (12321, 20857769), (16391, 15678639), (21867, 11752347), (26529, 9687081), (47083, 5458203), (49173, 5226213), (65601, 3917449), (79587, 3229027), (87271, 2944719), (105877, 2427237), (141249, 1819401), (147519, 1742071), (261813, 981573), (269693, 952893), (317631, 809079), (327191, 785439), (423747, 606467)]