1278316

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:122

約数の個数: 36

約数和(自身を含む): 2541504

約数和(自身を除く): 1263188

約数列:

[1, 2, 4, 13, 26, 31, 52, 61, 62, 122, 124, 169, 244, 338, 403, 676, 793, 806, 1586, 1612, 1891, 3172, 3782, 5239, 7564, 10309, 10478, 20618, 20956, 24583, 41236, 49166, 98332, 319579, 639158, 1278316]

約数ペア:

[(1, 1278316), (2, 639158), (4, 319579), (13, 98332), (26, 49166), (31, 41236), (52, 24583), (61, 20956), (62, 20618), (122, 10478), (124, 10309), (169, 7564), (244, 5239), (338, 3782), (403, 3172), (676, 1891), (793, 1612), (806, 1586)]