30209905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{28909}}^1$

素因数の和:28944

約数の個数: 16

約数和(自身を含む): 41630400

約数和(自身を除く): 11420495

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 28909, 144545, 317999, 549271, 1589995, 2746355, 6041981, 30209905]

約数ペア:

[(1, 30209905), (5, 6041981), (11, 2746355), (19, 1589995), (55, 549271), (95, 317999), (209, 144545), (1045, 28909)]