261569007076

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{386936401}}^1$

素因数の和:386936431

約数の個数: 18

約数和(自身を含む): 495665530962

約数和(自身を除く): 234096523886

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 386936401, 773872802, 1547745604, 5030173213, 10060346426, 20120692852, 65392251769, 130784503538, 261569007076]

約数ペア:

[(1, 261569007076), (2, 130784503538), (4, 65392251769), (13, 20120692852), (26, 10060346426), (52, 5030173213), (169, 1547745604), (338, 773872802), (676, 386936401)]