81864960

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21319}}^1$

素因数の和:21343

約数の個数: 72

約数和(自身を含む): 261468480

約数和(自身を除く): 179603520

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, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 21319, 42638, 63957, 85276, 106595, 127914, 170552, 213190, 255828, 319785, 341104, 426380, 511656, 639570, 682208, 852760, 1023312, 1279140, 1364416, 1705520, 2046624, 2558280, 2728832, 3411040, 4093248, 5116560, 5457664, 6822080, 8186496, 10233120, 13644160, 16372992, 20466240, 27288320, 40932480, 81864960]

約数ペア:

[(1, 81864960), (2, 40932480), (3, 27288320), (4, 20466240), (5, 16372992), (6, 13644160), (8, 10233120), (10, 8186496), (12, 6822080), (15, 5457664), (16, 5116560), (20, 4093248), (24, 3411040), (30, 2728832), (32, 2558280), (40, 2046624), (48, 1705520), (60, 1364416), (64, 1279140), (80, 1023312), (96, 852760), (120, 682208), (128, 639570), (160, 511656), (192, 426380), (240, 341104), (256, 319785), (320, 255828), (384, 213190), (480, 170552), (640, 127914), (768, 106595), (960, 85276), (1280, 63957), (1920, 42638), (3840, 21319)]