1666540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 3538080

約数和(自身を除く): 1871540

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 809, 1030, 1618, 2060, 3236, 4045, 8090, 16180, 83327, 166654, 333308, 416635, 833270, 1666540]

約数ペア:

[(1, 1666540), (2, 833270), (4, 416635), (5, 333308), (10, 166654), (20, 83327), (103, 16180), (206, 8090), (412, 4045), (515, 3236), (809, 2060), (1030, 1618)]