81714440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1361}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 196128000

約数和(自身を除く): 114413560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 632, 760, 790, 1361, 1501, 1580, 2722, 3002, 3160, 5444, 6004, 6805, 7505, 10888, 12008, 13610, 15010, 25859, 27220, 30020, 51718, 54440, 60040, 103436, 107519, 129295, 206872, 215038, 258590, 430076, 517180, 537595, 860152, 1034360, 1075190, 2042861, 2150380, 4085722, 4300760, 8171444, 10214305, 16342888, 20428610, 40857220, 81714440]

約数ペア:

[(1, 81714440), (2, 40857220), (4, 20428610), (5, 16342888), (8, 10214305), (10, 8171444), (19, 4300760), (20, 4085722), (38, 2150380), (40, 2042861), (76, 1075190), (79, 1034360), (95, 860152), (152, 537595), (158, 517180), (190, 430076), (316, 258590), (380, 215038), (395, 206872), (632, 129295), (760, 107519), (790, 103436), (1361, 60040), (1501, 54440), (1580, 51718), (2722, 30020), (3002, 27220), (3160, 25859), (5444, 15010), (6004, 13610), (6805, 12008), (7505, 10888)]