20178562868

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{1871}}^1\times {\mathrm{72871}}^1$

素因数の和:74783

約数の個数: 24

約数和(自身を含む): 36286758144

約数和(自身を除く): 16108195276

約数列:

[1, 2, 4, 37, 74, 148, 1871, 3742, 7484, 69227, 72871, 138454, 145742, 276908, 291484, 2696227, 5392454, 10784908, 136341641, 272683282, 545366564, 5044640717, 10089281434, 20178562868]

約数ペア:

[(1, 20178562868), (2, 10089281434), (4, 5044640717), (37, 545366564), (74, 272683282), (148, 136341641), (1871, 10784908), (3742, 5392454), (7484, 2696227), (69227, 291484), (72871, 276908), (138454, 145742)]