78825680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51859}}^1$

素因数の和:51891

約数の個数: 40

約数和(自身を含む): 192919200

約数和(自身を除く): 114093520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51859, 103718, 207436, 259295, 414872, 518590, 829744, 985321, 1037180, 1970642, 2074360, 3941284, 4148720, 4926605, 7882568, 9853210, 15765136, 19706420, 39412840, 78825680]

約数ペア:

[(1, 78825680), (2, 39412840), (4, 19706420), (5, 15765136), (8, 9853210), (10, 7882568), (16, 4926605), (19, 4148720), (20, 3941284), (38, 2074360), (40, 1970642), (76, 1037180), (80, 985321), (95, 829744), (152, 518590), (190, 414872), (304, 259295), (380, 207436), (760, 103718), (1520, 51859)]