68398180

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{33203}}^1$

素因数の和:33315

約数の個数: 24

約数和(自身を含む): 145035072

約数和(自身を除く): 76636892

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 33203, 66406, 132812, 166015, 332030, 664060, 3419909, 6839818, 13679636, 17099545, 34199090, 68398180]

約数ペア:

[(1, 68398180), (2, 34199090), (4, 17099545), (5, 13679636), (10, 6839818), (20, 3419909), (103, 664060), (206, 332030), (412, 166015), (515, 132812), (1030, 66406), (2060, 33203)]