891051520

素因数分解:

$2^9\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2657}}^1$

素因数の和:2811

約数の個数: 80

約数和(自身を含む): 2153554128

約数和(自身を除く): 1262502608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 320, 512, 524, 640, 655, 1048, 1280, 1310, 2096, 2560, 2620, 2657, 4192, 5240, 5314, 8384, 10480, 10628, 13285, 16768, 20960, 21256, 26570, 33536, 41920, 42512, 53140, 67072, 83840, 85024, 106280, 167680, 170048, 212560, 335360, 340096, 348067, 425120, 680192, 696134, 850240, 1360384, 1392268, 1700480, 1740335, 2784536, 3400960, 3480670, 5569072, 6801920, 6961340, 11138144, 13922680, 22276288, 27845360, 44552576, 55690720, 89105152, 111381440, 178210304, 222762880, 445525760, 891051520]

約数ペア:

[(1, 891051520), (2, 445525760), (4, 222762880), (5, 178210304), (8, 111381440), (10, 89105152), (16, 55690720), (20, 44552576), (32, 27845360), (40, 22276288), (64, 13922680), (80, 11138144), (128, 6961340), (131, 6801920), (160, 5569072), (256, 3480670), (262, 3400960), (320, 2784536), (512, 1740335), (524, 1700480), (640, 1392268), (655, 1360384), (1048, 850240), (1280, 696134), (1310, 680192), (2096, 425120), (2560, 348067), (2620, 340096), (2657, 335360), (4192, 212560), (5240, 170048), (5314, 167680), (8384, 106280), (10480, 85024), (10628, 83840), (13285, 67072), (16768, 53140), (20960, 42512), (21256, 41920), (26570, 33536)]