81665700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1987}}^1$

素因数の和:2141

約数の個数: 72

約数和(自身を含む): 238130592

約数和(自身を除く): 156464892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 137, 150, 274, 300, 411, 548, 685, 822, 1370, 1644, 1987, 2055, 2740, 3425, 3974, 4110, 5961, 6850, 7948, 8220, 9935, 10275, 11922, 13700, 19870, 20550, 23844, 29805, 39740, 41100, 49675, 59610, 99350, 119220, 149025, 198700, 272219, 298050, 544438, 596100, 816657, 1088876, 1361095, 1633314, 2722190, 3266628, 4083285, 5444380, 6805475, 8166570, 13610950, 16333140, 20416425, 27221900, 40832850, 81665700]

約数ペア:

[(1, 81665700), (2, 40832850), (3, 27221900), (4, 20416425), (5, 16333140), (6, 13610950), (10, 8166570), (12, 6805475), (15, 5444380), (20, 4083285), (25, 3266628), (30, 2722190), (50, 1633314), (60, 1361095), (75, 1088876), (100, 816657), (137, 596100), (150, 544438), (274, 298050), (300, 272219), (411, 198700), (548, 149025), (685, 119220), (822, 99350), (1370, 59610), (1644, 49675), (1987, 41100), (2055, 39740), (2740, 29805), (3425, 23844), (3974, 20550), (4110, 19870), (5961, 13700), (6850, 11922), (7948, 10275), (8220, 9935)]