20878715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29201}}^1$

素因数の和:29230

約数の個数: 16

約数和(自身を含む): 29435616

約数和(自身を除く): 8556901

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 29201, 146005, 321211, 379613, 1606055, 1898065, 4175743, 20878715]

約数ペア:

[(1, 20878715), (5, 4175743), (11, 1898065), (13, 1606055), (55, 379613), (65, 321211), (143, 146005), (715, 29201)]