20213382020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77743777}}^1$

素因数の和:77743799

約数の個数: 24

約数和(自身を含む): 45713341464

約数和(自身を除く): 25499959444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77743777, 155487554, 310975108, 388718885, 777437770, 1010669101, 1554875540, 2021338202, 4042676404, 5053345505, 10106691010, 20213382020]

約数ペア:

[(1, 20213382020), (2, 10106691010), (4, 5053345505), (5, 4042676404), (10, 2021338202), (13, 1554875540), (20, 1010669101), (26, 777437770), (52, 388718885), (65, 310975108), (130, 155487554), (260, 77743777)]