20349621872

素因数分解:

$2^4\times {\mathrm{17657}}^1\times {\mathrm{72031}}^1$

素因数の和:89696

約数の個数: 20

約数和(自身を含む): 39430172736

約数和(自身を除く): 19080550864

約数列:

[1, 2, 4, 8, 16, 17657, 35314, 70628, 72031, 141256, 144062, 282512, 288124, 576248, 1152496, 1271851367, 2543702734, 5087405468, 10174810936, 20349621872]

約数ペア:

[(1, 20349621872), (2, 10174810936), (4, 5087405468), (8, 2543702734), (16, 1271851367), (17657, 1152496), (35314, 576248), (70628, 288124), (72031, 282512), (141256, 144062)]