81313975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{5171}}^1$

素因数の和:5235

約数の個数: 24

約数和(自身を含む): 109667088

約数和(自身を除く): 28353113

約数列:

[1, 5, 17, 25, 37, 85, 185, 425, 629, 925, 3145, 5171, 15725, 25855, 87907, 129275, 191327, 439535, 956635, 2197675, 3252559, 4783175, 16262795, 81313975]

約数ペア:

[(1, 81313975), (5, 16262795), (17, 4783175), (25, 3252559), (37, 2197675), (85, 956635), (185, 439535), (425, 191327), (629, 129275), (925, 87907), (3145, 25855), (5171, 15725)]