20213447020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77744027}}^1$

素因数の和:77744049

約数の個数: 24

約数和(自身を含む): 45713488464

約数和(自身を除く): 25500041444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77744027, 155488054, 310976108, 388720135, 777440270, 1010672351, 1554880540, 2021344702, 4042689404, 5053361755, 10106723510, 20213447020]

約数ペア:

[(1, 20213447020), (2, 10106723510), (4, 5053361755), (5, 4042689404), (10, 2021344702), (13, 1554880540), (20, 1010672351), (26, 777440270), (52, 388720135), (65, 310976108), (130, 155488054), (260, 77744027)]