20803772015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18826943}}^1$

素因数の和:18826978

約数の個数: 16

約数和(自身を含む): 28466339328

約数和(自身を除く): 7662567313

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18826943, 94134715, 244750259, 320058031, 1223751295, 1600290155, 4160754403, 20803772015]

約数ペア:

[(1, 20803772015), (5, 4160754403), (13, 1600290155), (17, 1223751295), (65, 320058031), (85, 244750259), (221, 94134715), (1105, 18826943)]