207943780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2311}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 477751680

約数和(自身を除く): 269807900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 409, 818, 1636, 2045, 2311, 4090, 4499, 4622, 8180, 8998, 9244, 11555, 17996, 22495, 23110, 25421, 44990, 46220, 50842, 89980, 101684, 127105, 254210, 508420, 945199, 1890398, 3780796, 4725995, 9451990, 10397189, 18903980, 20794378, 41588756, 51985945, 103971890, 207943780]

約数ペア:

[(1, 207943780), (2, 103971890), (4, 51985945), (5, 41588756), (10, 20794378), (11, 18903980), (20, 10397189), (22, 9451990), (44, 4725995), (55, 3780796), (110, 1890398), (220, 945199), (409, 508420), (818, 254210), (1636, 127105), (2045, 101684), (2311, 89980), (4090, 50842), (4499, 46220), (4622, 44990), (8180, 25421), (8998, 23110), (9244, 22495), (11555, 17996)]