72686440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 178640640

約数和(自身を除く): 105954200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 47, 82, 92, 94, 115, 164, 184, 188, 205, 230, 235, 328, 376, 410, 460, 470, 820, 920, 940, 943, 1081, 1640, 1681, 1880, 1886, 1927, 2162, 3362, 3772, 3854, 4324, 4715, 5405, 6724, 7544, 7708, 8405, 8648, 9430, 9635, 10810, 13448, 15416, 16810, 18860, 19270, 21620, 33620, 37720, 38540, 38663, 43240, 44321, 67240, 77080, 77326, 79007, 88642, 154652, 158014, 177284, 193315, 221605, 309304, 316028, 354568, 386630, 395035, 443210, 632056, 773260, 790070, 886420, 1546520, 1580140, 1772840, 1817161, 3160280, 3634322, 7268644, 9085805, 14537288, 18171610, 36343220, 72686440]

約数ペア:

[(1, 72686440), (2, 36343220), (4, 18171610), (5, 14537288), (8, 9085805), (10, 7268644), (20, 3634322), (23, 3160280), (40, 1817161), (41, 1772840), (46, 1580140), (47, 1546520), (82, 886420), (92, 790070), (94, 773260), (115, 632056), (164, 443210), (184, 395035), (188, 386630), (205, 354568), (230, 316028), (235, 309304), (328, 221605), (376, 193315), (410, 177284), (460, 158014), (470, 154652), (820, 88642), (920, 79007), (940, 77326), (943, 77080), (1081, 67240), (1640, 44321), (1681, 43240), (1880, 38663), (1886, 38540), (1927, 37720), (2162, 33620), (3362, 21620), (3772, 19270), (3854, 18860), (4324, 16810), (4715, 15416), (5405, 13448), (6724, 10810), (7544, 9635), (7708, 9430), (8405, 8648)]