1780451974615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{613}}^1\times {\mathrm{4289}}^1$

素因数の和:5212

約数の個数: 64

約数和(自身を含む): 2348654330880

約数和(自身を除く): 568202356265

約数列:

[1, 5, 17, 31, 85, 155, 257, 527, 613, 1285, 2635, 3065, 4289, 4369, 7967, 10421, 19003, 21445, 21845, 39835, 52105, 72913, 95015, 132959, 135439, 157541, 323051, 364565, 664795, 677195, 787705, 1102273, 1615255, 2260303, 2629157, 2678197, 4883771, 5511365, 11301515, 13145785, 13390985, 18738641, 24418855, 34170463, 44695669, 81503867, 83024107, 93693205, 170852315, 223478345, 407519335, 415120535, 580897871, 675693349, 1385565739, 2904489355, 3378466745, 6927828695, 11486786933, 20946493819, 57433934665, 104732469095, 356090394923, 1780451974615]

約数ペア:

[(1, 1780451974615), (5, 356090394923), (17, 104732469095), (31, 57433934665), (85, 20946493819), (155, 11486786933), (257, 6927828695), (527, 3378466745), (613, 2904489355), (1285, 1385565739), (2635, 675693349), (3065, 580897871), (4289, 415120535), (4369, 407519335), (7967, 223478345), (10421, 170852315), (19003, 93693205), (21445, 83024107), (21845, 81503867), (39835, 44695669), (52105, 34170463), (72913, 24418855), (95015, 18738641), (132959, 13390985), (135439, 13145785), (157541, 11301515), (323051, 5511365), (364565, 4883771), (664795, 2678197), (677195, 2629157), (787705, 2260303), (1102273, 1615255)]