257807316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1652611}}^1$

素因数の和:1652631

約数の個数: 24

約数和(自身を含む): 647823904

約数和(自身を除く): 390016588

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1652611, 3305222, 4957833, 6610444, 9915666, 19831332, 21483943, 42967886, 64451829, 85935772, 128903658, 257807316]

約数ペア:

[(1, 257807316), (2, 128903658), (3, 85935772), (4, 64451829), (6, 42967886), (12, 21483943), (13, 19831332), (26, 9915666), (39, 6610444), (52, 4957833), (78, 3305222), (156, 1652611)]