80731760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53113}}^1$

素因数の和:53145

約数の個数: 40

約数和(自身を含む): 197584080

約数和(自身を除く): 116852320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53113, 106226, 212452, 265565, 424904, 531130, 849808, 1009147, 1062260, 2018294, 2124520, 4036588, 4249040, 5045735, 8073176, 10091470, 16146352, 20182940, 40365880, 80731760]

約数ペア:

[(1, 80731760), (2, 40365880), (4, 20182940), (5, 16146352), (8, 10091470), (10, 8073176), (16, 5045735), (19, 4249040), (20, 4036588), (38, 2124520), (40, 2018294), (76, 1062260), (80, 1009147), (95, 849808), (152, 531130), (190, 424904), (304, 265565), (380, 212452), (760, 106226), (1520, 53113)]