20455925

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2851}}^1$

素因数の和:2909

約数の個数: 24

約数和(自身を含む): 29706432

約数和(自身を除く): 9250507

約数列:

[1, 5, 7, 25, 35, 41, 175, 205, 287, 1025, 1435, 2851, 7175, 14255, 19957, 71275, 99785, 116891, 498925, 584455, 818237, 2922275, 4091185, 20455925]

約数ペア:

[(1, 20455925), (5, 4091185), (7, 2922275), (25, 818237), (35, 584455), (41, 498925), (175, 116891), (205, 99785), (287, 71275), (1025, 19957), (1435, 14255), (2851, 7175)]