20171781656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{78241}}^1$

素因数の和:78364

約数の個数: 64

約数和(自身を含む): 42457238880

約数和(自身を除く): 22285457224

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 67, 74, 104, 134, 148, 268, 296, 481, 536, 871, 962, 1742, 1924, 2479, 3484, 3848, 4958, 6968, 9916, 19832, 32227, 64454, 78241, 128908, 156482, 257816, 312964, 625928, 1017133, 2034266, 2894917, 4068532, 5242147, 5789834, 8137064, 10484294, 11579668, 20968588, 23159336, 37633921, 41937176, 68147911, 75267842, 136295822, 150535684, 193959439, 272591644, 301071368, 387918878, 545183288, 775837756, 1551675512, 2521472707, 5042945414, 10085890828, 20171781656]

約数ペア:

[(1, 20171781656), (2, 10085890828), (4, 5042945414), (8, 2521472707), (13, 1551675512), (26, 775837756), (37, 545183288), (52, 387918878), (67, 301071368), (74, 272591644), (104, 193959439), (134, 150535684), (148, 136295822), (268, 75267842), (296, 68147911), (481, 41937176), (536, 37633921), (871, 23159336), (962, 20968588), (1742, 11579668), (1924, 10484294), (2479, 8137064), (3484, 5789834), (3848, 5242147), (4958, 4068532), (6968, 2894917), (9916, 2034266), (19832, 1017133), (32227, 625928), (64454, 312964), (78241, 257816), (128908, 156482)]