28055525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 37122624

約数和(自身を除く): 9067099

約数列:

[1, 5, 17, 25, 85, 251, 263, 425, 1255, 1315, 4267, 4471, 6275, 6575, 21335, 22355, 66013, 106675, 111775, 330065, 1122221, 1650325, 5611105, 28055525]

約数ペア:

[(1, 28055525), (5, 5611105), (17, 1650325), (25, 1122221), (85, 330065), (251, 111775), (263, 106675), (425, 66013), (1255, 22355), (1315, 21335), (4267, 6575), (4471, 6275)]