29725520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2028

約数の個数: 80

約数和(自身を含む): 79869888

約数和(自身を除く): 50144368

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 1987, 2992, 3740, 3974, 7480, 7948, 9935, 14960, 15896, 19870, 21857, 31792, 33779, 39740, 43714, 67558, 79480, 87428, 109285, 135116, 158960, 168895, 174856, 218570, 270232, 337790, 349712, 371569, 437140, 540464, 675580, 743138, 874280, 1351160, 1486276, 1748560, 1857845, 2702320, 2972552, 3715690, 5945104, 7431380, 14862760, 29725520]

約数ペア:

[(1, 29725520), (2, 14862760), (4, 7431380), (5, 5945104), (8, 3715690), (10, 2972552), (11, 2702320), (16, 1857845), (17, 1748560), (20, 1486276), (22, 1351160), (34, 874280), (40, 743138), (44, 675580), (55, 540464), (68, 437140), (80, 371569), (85, 349712), (88, 337790), (110, 270232), (136, 218570), (170, 174856), (176, 168895), (187, 158960), (220, 135116), (272, 109285), (340, 87428), (374, 79480), (440, 67558), (680, 43714), (748, 39740), (880, 33779), (935, 31792), (1360, 21857), (1496, 19870), (1870, 15896), (1987, 14960), (2992, 9935), (3740, 7948), (3974, 7480)]