20011075

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2789}}^1$

素因数の和:2847

約数の個数: 24

約数和(自身を含む): 29060640

約数和(自身を除く): 9049565

約数列:

[1, 5, 7, 25, 35, 41, 175, 205, 287, 1025, 1435, 2789, 7175, 13945, 19523, 69725, 97615, 114349, 488075, 571745, 800443, 2858725, 4002215, 20011075]

約数ペア:

[(1, 20011075), (5, 4002215), (7, 2858725), (25, 800443), (35, 571745), (41, 488075), (175, 114349), (205, 97615), (287, 69725), (1025, 19523), (1435, 13945), (2789, 7175)]