19780655

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2053}}^1$

素因数の和:2146

約数の個数: 16

約数和(自身を含む): 24845184

約数和(自身を除く): 5064529

約数列:

[1, 5, 41, 47, 205, 235, 1927, 2053, 9635, 10265, 84173, 96491, 420865, 482455, 3956131, 19780655]

約数ペア:

[(1, 19780655), (5, 3956131), (41, 482455), (47, 420865), (205, 96491), (235, 84173), (1927, 10265), (2053, 9635)]