90788080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59729}}^1$

素因数の和:59761

約数の個数: 40

約数和(自身を含む): 222195600

約数和(自身を除く): 131407520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 59729, 119458, 238916, 298645, 477832, 597290, 955664, 1134851, 1194580, 2269702, 2389160, 4539404, 4778320, 5674255, 9078808, 11348510, 18157616, 22697020, 45394040, 90788080]

約数ペア:

[(1, 90788080), (2, 45394040), (4, 22697020), (5, 18157616), (8, 11348510), (10, 9078808), (16, 5674255), (19, 4778320), (20, 4539404), (38, 2389160), (40, 2269702), (76, 1194580), (80, 1134851), (95, 955664), (152, 597290), (190, 477832), (304, 298645), (380, 238916), (760, 119458), (1520, 59729)]