131185920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 423843840

約数和(自身を除く): 292657920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 127, 128, 160, 192, 240, 254, 256, 269, 320, 381, 384, 480, 508, 538, 635, 640, 762, 768, 807, 960, 1016, 1076, 1270, 1280, 1345, 1524, 1614, 1905, 1920, 2032, 2152, 2540, 2690, 3048, 3228, 3810, 3840, 4035, 4064, 4304, 5080, 5380, 6096, 6456, 7620, 8070, 8128, 8608, 10160, 10760, 12192, 12912, 15240, 16140, 16256, 17216, 20320, 21520, 24384, 25824, 30480, 32280, 32512, 34163, 34432, 40640, 43040, 48768, 51648, 60960, 64560, 68326, 68864, 81280, 86080, 97536, 102489, 103296, 121920, 129120, 136652, 162560, 170815, 172160, 204978, 206592, 243840, 258240, 273304, 341630, 344320, 409956, 487680, 512445, 516480, 546608, 683260, 819912, 1024890, 1032960, 1093216, 1366520, 1639824, 2049780, 2186432, 2733040, 3279648, 4099560, 4372864, 5466080, 6559296, 8199120, 8745728, 10932160, 13118592, 16398240, 21864320, 26237184, 32796480, 43728640, 65592960, 131185920]

約数ペア:

[(1, 131185920), (2, 65592960), (3, 43728640), (4, 32796480), (5, 26237184), (6, 21864320), (8, 16398240), (10, 13118592), (12, 10932160), (15, 8745728), (16, 8199120), (20, 6559296), (24, 5466080), (30, 4372864), (32, 4099560), (40, 3279648), (48, 2733040), (60, 2186432), (64, 2049780), (80, 1639824), (96, 1366520), (120, 1093216), (127, 1032960), (128, 1024890), (160, 819912), (192, 683260), (240, 546608), (254, 516480), (256, 512445), (269, 487680), (320, 409956), (381, 344320), (384, 341630), (480, 273304), (508, 258240), (538, 243840), (635, 206592), (640, 204978), (762, 172160), (768, 170815), (807, 162560), (960, 136652), (1016, 129120), (1076, 121920), (1270, 103296), (1280, 102489), (1345, 97536), (1524, 86080), (1614, 81280), (1905, 68864), (1920, 68326), (2032, 64560), (2152, 60960), (2540, 51648), (2690, 48768), (3048, 43040), (3228, 40640), (3810, 34432), (3840, 34163), (4035, 32512), (4064, 32280), (4304, 30480), (5080, 25824), (5380, 24384), (6096, 21520), (6456, 20320), (7620, 17216), (8070, 16256), (8128, 16140), (8608, 15240), (10160, 12912), (10760, 12192)]