20479745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28643}}^1$

素因数の和:28672

約数の個数: 16

約数和(自身を含む): 28873152

約数和(自身を除く): 8393407

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28643, 143215, 315073, 372359, 1575365, 1861795, 4095949, 20479745]

約数ペア:

[(1, 20479745), (5, 4095949), (11, 1861795), (13, 1575365), (55, 372359), (65, 315073), (143, 143215), (715, 28643)]