81571925

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1907}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 106466400

約数和(自身を除く): 24894475

約数列:

[1, 5, 25, 29, 59, 145, 295, 725, 1475, 1711, 1907, 8555, 9535, 42775, 47675, 55303, 112513, 276515, 562565, 1382575, 2812825, 3262877, 16314385, 81571925]

約数ペア:

[(1, 81571925), (5, 16314385), (25, 3262877), (29, 2812825), (59, 1382575), (145, 562565), (295, 276515), (725, 112513), (1475, 55303), (1711, 47675), (1907, 42775), (8555, 9535)]