51986380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{439}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 113541120

約数和(自身を除く): 61554740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 191, 310, 382, 439, 620, 764, 878, 955, 1756, 1910, 2195, 3820, 4390, 5921, 8780, 11842, 13609, 23684, 27218, 29605, 54436, 59210, 68045, 83849, 118420, 136090, 167698, 272180, 335396, 419245, 838490, 1676980, 2599319, 5198638, 10397276, 12996595, 25993190, 51986380]

約数ペア:

[(1, 51986380), (2, 25993190), (4, 12996595), (5, 10397276), (10, 5198638), (20, 2599319), (31, 1676980), (62, 838490), (124, 419245), (155, 335396), (191, 272180), (310, 167698), (382, 136090), (439, 118420), (620, 83849), (764, 68045), (878, 59210), (955, 54436), (1756, 29605), (1910, 27218), (2195, 23684), (3820, 13609), (4390, 11842), (5921, 8780)]