840681880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{1907}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 1928759040

約数和(自身を除く): 1088077160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 107, 206, 214, 412, 428, 515, 535, 824, 856, 1030, 1070, 1907, 2060, 2140, 3814, 4120, 4280, 7628, 9535, 11021, 15256, 19070, 22042, 38140, 44084, 55105, 76280, 88168, 110210, 196421, 204049, 220420, 392842, 408098, 440840, 785684, 816196, 982105, 1020245, 1571368, 1632392, 1964210, 2040490, 3928420, 4080980, 7856840, 8161960, 21017047, 42034094, 84068188, 105085235, 168136376, 210170470, 420340940, 840681880]

約数ペア:

[(1, 840681880), (2, 420340940), (4, 210170470), (5, 168136376), (8, 105085235), (10, 84068188), (20, 42034094), (40, 21017047), (103, 8161960), (107, 7856840), (206, 4080980), (214, 3928420), (412, 2040490), (428, 1964210), (515, 1632392), (535, 1571368), (824, 1020245), (856, 982105), (1030, 816196), (1070, 785684), (1907, 440840), (2060, 408098), (2140, 392842), (3814, 220420), (4120, 204049), (4280, 196421), (7628, 110210), (9535, 88168), (11021, 76280), (15256, 55105), (19070, 44084), (22042, 38140)]