12640496

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71821}}^1$

素因数の和:71840

約数の個数: 20

約数和(自身を含む): 26717784

約数和(自身を除く): 14077288

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 71821, 143642, 287284, 574568, 790031, 1149136, 1580062, 3160124, 6320248, 12640496]

約数ペア:

[(1, 12640496), (2, 6320248), (4, 3160124), (8, 1580062), (11, 1149136), (16, 790031), (22, 574568), (44, 287284), (88, 143642), (176, 71821)]