78489760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25819}}^1$

素因数の和:25853

約数の個数: 48

約数和(自身を含む): 195199200

約数和(自身を除く): 116709440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 25819, 51638, 103276, 129095, 206552, 258190, 413104, 490561, 516380, 826208, 981122, 1032760, 1962244, 2065520, 2452805, 3924488, 4131040, 4905610, 7848976, 9811220, 15697952, 19622440, 39244880, 78489760]

約数ペア:

[(1, 78489760), (2, 39244880), (4, 19622440), (5, 15697952), (8, 9811220), (10, 7848976), (16, 4905610), (19, 4131040), (20, 3924488), (32, 2452805), (38, 2065520), (40, 1962244), (76, 1032760), (80, 981122), (95, 826208), (152, 516380), (160, 490561), (190, 413104), (304, 258190), (380, 206552), (608, 129095), (760, 103276), (1520, 51638), (3040, 25819)]