20455855

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25411}}^1$

素因数の和:25446

約数の個数: 16

約数和(自身を含む): 29274624

約数和(自身を除く): 8818769

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25411, 127055, 177877, 584453, 889385, 2922265, 4091171, 20455855]

約数ペア:

[(1, 20455855), (5, 4091171), (7, 2922265), (23, 889385), (35, 584453), (115, 177877), (161, 127055), (805, 25411)]