261567680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3911}}^1$

素因数の和:3958

約数の個数: 112

約数和(自身を含む): 715426560

約数和(自身を除く): 453858880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 320, 352, 380, 418, 440, 608, 704, 760, 836, 880, 1045, 1216, 1520, 1672, 1760, 2090, 3040, 3344, 3520, 3911, 4180, 6080, 6688, 7822, 8360, 13376, 15644, 16720, 19555, 31288, 33440, 39110, 43021, 62576, 66880, 74309, 78220, 86042, 125152, 148618, 156440, 172084, 215105, 250304, 297236, 312880, 344168, 371545, 430210, 594472, 625760, 688336, 743090, 817399, 860420, 1188944, 1251520, 1376672, 1486180, 1634798, 1720840, 2377888, 2753344, 2972360, 3269596, 3441680, 4086995, 4755776, 5944720, 6539192, 6883360, 8173990, 11889440, 13078384, 13766720, 16347980, 23778880, 26156768, 32695960, 52313536, 65391920, 130783840, 261567680]

約数ペア:

[(1, 261567680), (2, 130783840), (4, 65391920), (5, 52313536), (8, 32695960), (10, 26156768), (11, 23778880), (16, 16347980), (19, 13766720), (20, 13078384), (22, 11889440), (32, 8173990), (38, 6883360), (40, 6539192), (44, 5944720), (55, 4755776), (64, 4086995), (76, 3441680), (80, 3269596), (88, 2972360), (95, 2753344), (110, 2377888), (152, 1720840), (160, 1634798), (176, 1486180), (190, 1376672), (209, 1251520), (220, 1188944), (304, 860420), (320, 817399), (352, 743090), (380, 688336), (418, 625760), (440, 594472), (608, 430210), (704, 371545), (760, 344168), (836, 312880), (880, 297236), (1045, 250304), (1216, 215105), (1520, 172084), (1672, 156440), (1760, 148618), (2090, 125152), (3040, 86042), (3344, 78220), (3520, 74309), (3911, 66880), (4180, 62576), (6080, 43021), (6688, 39110), (7822, 33440), (8360, 31288), (13376, 19555), (15644, 16720)]