207920240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{677}}^1$

素因数の和:1050

約数の個数: 80

約数和(自身を含む): 529653600

約数和(自身を除く): 321733360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 349, 440, 677, 698, 880, 1354, 1396, 1745, 2708, 2792, 3385, 3490, 3839, 5416, 5584, 6770, 6980, 7447, 7678, 10832, 13540, 13960, 14894, 15356, 19195, 27080, 27920, 29788, 30712, 37235, 38390, 54160, 59576, 61424, 74470, 76780, 119152, 148940, 153560, 236273, 297880, 307120, 472546, 595760, 945092, 1181365, 1890184, 2362730, 2599003, 3780368, 4725460, 5198006, 9450920, 10396012, 12995015, 18901840, 20792024, 25990030, 41584048, 51980060, 103960120, 207920240]

約数ペア:

[(1, 207920240), (2, 103960120), (4, 51980060), (5, 41584048), (8, 25990030), (10, 20792024), (11, 18901840), (16, 12995015), (20, 10396012), (22, 9450920), (40, 5198006), (44, 4725460), (55, 3780368), (80, 2599003), (88, 2362730), (110, 1890184), (176, 1181365), (220, 945092), (349, 595760), (440, 472546), (677, 307120), (698, 297880), (880, 236273), (1354, 153560), (1396, 148940), (1745, 119152), (2708, 76780), (2792, 74470), (3385, 61424), (3490, 59576), (3839, 54160), (5416, 38390), (5584, 37235), (6770, 30712), (6980, 29788), (7447, 27920), (7678, 27080), (10832, 19195), (13540, 15356), (13960, 14894)]