20801315

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{653}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 26180928

約数和(自身を除く): 5379613

約数列:

[1, 5, 23, 115, 277, 653, 1385, 3265, 6371, 15019, 31855, 75095, 180881, 904405, 4160263, 20801315]

約数ペア:

[(1, 20801315), (5, 4160263), (23, 904405), (115, 180881), (277, 75095), (653, 31855), (1385, 15019), (3265, 6371)]