20168538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 47308800

約数和(自身を除く): 27140262

約数列:

[1, 2, 3, 6, 13, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 186, 247, 403, 439, 494, 589, 741, 806, 878, 1178, 1209, 1317, 1482, 1767, 2418, 2634, 3534, 5707, 7657, 8341, 11414, 13609, 15314, 16682, 17121, 22971, 25023, 27218, 34242, 40827, 45942, 50046, 81654, 108433, 176917, 216866, 258571, 325299, 353834, 517142, 530751, 650598, 775713, 1061502, 1551426, 3361423, 6722846, 10084269, 20168538]

約数ペア:

[(1, 20168538), (2, 10084269), (3, 6722846), (6, 3361423), (13, 1551426), (19, 1061502), (26, 775713), (31, 650598), (38, 530751), (39, 517142), (57, 353834), (62, 325299), (78, 258571), (93, 216866), (114, 176917), (186, 108433), (247, 81654), (403, 50046), (439, 45942), (494, 40827), (589, 34242), (741, 27218), (806, 25023), (878, 22971), (1178, 17121), (1209, 16682), (1317, 15314), (1482, 13609), (1767, 11414), (2418, 8341), (2634, 7657), (3534, 5707)]