20168225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10477}}^1$

素因数の和:10505

約数の個数: 24

約数和(自身を含む): 31182528

約数和(自身を除く): 11014303

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10477, 52385, 73339, 115247, 261925, 366695, 576235, 806729, 1833475, 2881175, 4033645, 20168225]

約数ペア:

[(1, 20168225), (5, 4033645), (7, 2881175), (11, 1833475), (25, 806729), (35, 576235), (55, 366695), (77, 261925), (175, 115247), (275, 73339), (385, 52385), (1925, 10477)]