18087775

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 23748480

約数和(自身を除く): 5660705

約数列:

[1, 5, 23, 25, 83, 115, 379, 415, 575, 1895, 1909, 2075, 8717, 9475, 9545, 31457, 43585, 47725, 157285, 217925, 723511, 786425, 3617555, 18087775]

約数ペア:

[(1, 18087775), (5, 3617555), (23, 786425), (25, 723511), (83, 217925), (115, 157285), (379, 47725), (415, 43585), (575, 31457), (1895, 9545), (1909, 9475), (2075, 8717)]