16780760

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4073}}^1$

素因数の和:4187

約数の個数: 32

約数和(自身を含む): 38132640

約数和(自身を除く): 21351880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4073, 4120, 8146, 16292, 20365, 32584, 40730, 81460, 162920, 419519, 839038, 1678076, 2097595, 3356152, 4195190, 8390380, 16780760]

約数ペア:

[(1, 16780760), (2, 8390380), (4, 4195190), (5, 3356152), (8, 2097595), (10, 1678076), (20, 839038), (40, 419519), (103, 162920), (206, 81460), (412, 40730), (515, 32584), (824, 20365), (1030, 16292), (2060, 8146), (4073, 4120)]