20115454

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{7489}}^1$

素因数の和:7587

約数の個数: 16

約数和(自身を含む): 32356800

約数和(自身を除く): 12241346

約数列:

[1, 2, 17, 34, 79, 158, 1343, 2686, 7489, 14978, 127313, 254626, 591631, 1183262, 10057727, 20115454]

約数ペア:

[(1, 20115454), (2, 10057727), (17, 1183262), (34, 591631), (79, 254626), (158, 127313), (1343, 14978), (2686, 7489)]