20197749025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{143833}}^1$

素因数の和:144021

約数の個数: 24

約数和(自身を含む): 25843517784

約数和(自身を除く): 5645768759

約数列:

[1, 5, 25, 41, 137, 205, 685, 1025, 3425, 5617, 28085, 140425, 143833, 719165, 3595825, 5897153, 19705121, 29485765, 98525605, 147428825, 492628025, 807909961, 4039549805, 20197749025]

約数ペア:

[(1, 20197749025), (5, 4039549805), (25, 807909961), (41, 492628025), (137, 147428825), (205, 98525605), (685, 29485765), (1025, 19705121), (3425, 5897153), (5617, 3595825), (28085, 719165), (140425, 143833)]