20366425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{277}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 26991576

約数和(自身を除く): 6625151

約数列:

[1, 5, 17, 25, 85, 173, 277, 425, 865, 1385, 2941, 4325, 4709, 6925, 14705, 23545, 47921, 73525, 117725, 239605, 814657, 1198025, 4073285, 20366425]

約数ペア:

[(1, 20366425), (5, 4073285), (17, 1198025), (25, 814657), (85, 239605), (173, 117725), (277, 73525), (425, 47921), (865, 23545), (1385, 14705), (2941, 6925), (4325, 4709)]