20430195

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{28979}}^1$

素因数の和:29034

約数の個数: 16

約数和(自身を含む): 33384960

約数和(自身を除く): 12954765

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 28979, 86937, 144895, 434685, 1362013, 4086039, 6810065, 20430195]

約数ペア:

[(1, 20430195), (3, 6810065), (5, 4086039), (15, 1362013), (47, 434685), (141, 144895), (235, 86937), (705, 28979)]