20719415

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 25485312

約数和(自身を除く): 4765897

約数列:

[1, 5, 67, 127, 335, 487, 635, 2435, 8509, 32629, 42545, 61849, 163145, 309245, 4143883, 20719415]

約数ペア:

[(1, 20719415), (5, 4143883), (67, 309245), (127, 163145), (335, 61849), (487, 42545), (635, 32629), (2435, 8509)]