28506725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 38330880

約数和(自身を除く): 9824155

約数列:

[1, 5, 13, 25, 65, 239, 325, 367, 1195, 1835, 3107, 4771, 5975, 9175, 15535, 23855, 77675, 87713, 119275, 438565, 1140269, 2192825, 5701345, 28506725]

約数ペア:

[(1, 28506725), (5, 5701345), (13, 2192825), (25, 1140269), (65, 438565), (239, 119275), (325, 87713), (367, 77675), (1195, 23855), (1835, 15535), (3107, 9175), (4771, 5975)]