20150389640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4621649}}^1$

素因数の和:4621769

約数の個数: 32

約数和(自身を含む): 45754335000

約数和(自身を除く): 25603945360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4621649, 9243298, 18486596, 23108245, 36973192, 46216490, 92432980, 184865960, 503759741, 1007519482, 2015038964, 2518798705, 4030077928, 5037597410, 10075194820, 20150389640]

約数ペア:

[(1, 20150389640), (2, 10075194820), (4, 5037597410), (5, 4030077928), (8, 2518798705), (10, 2015038964), (20, 1007519482), (40, 503759741), (109, 184865960), (218, 92432980), (436, 46216490), (545, 36973192), (872, 23108245), (1090, 18486596), (2180, 9243298), (4360, 4621649)]