20787055

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 27074880

約数和(自身を除く): 6287825

約数列:

[1, 5, 23, 29, 115, 145, 271, 529, 667, 1355, 2645, 3335, 6233, 7859, 15341, 31165, 39295, 76705, 143359, 180757, 716795, 903785, 4157411, 20787055]

約数ペア:

[(1, 20787055), (5, 4157411), (23, 903785), (29, 716795), (115, 180757), (145, 143359), (271, 76705), (529, 39295), (667, 31165), (1355, 15341), (2645, 7859), (3335, 6233)]