18781435

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{349}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 23184000

約数和(自身を除く): 4402565

約数列:

[1, 5, 47, 229, 235, 349, 1145, 1745, 10763, 16403, 53815, 79921, 82015, 399605, 3756287, 18781435]

約数ペア:

[(1, 18781435), (5, 3756287), (47, 399605), (229, 82015), (235, 79921), (349, 53815), (1145, 16403), (1745, 10763)]