20571265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28771}}^1$

素因数の和:28800

約数の個数: 16

約数和(自身を含む): 29002176

約数和(自身を除く): 8430911

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28771, 143855, 316481, 374023, 1582405, 1870115, 4114253, 20571265]

約数ペア:

[(1, 20571265), (5, 4114253), (11, 1870115), (13, 1582405), (55, 374023), (65, 316481), (143, 143855), (715, 28771)]