313628705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 420553728

約数和(自身を除く): 106925023

約数列:

[1, 5, 13, 31, 65, 155, 317, 403, 491, 1585, 2015, 2455, 4121, 6383, 9827, 15221, 20605, 31915, 49135, 76105, 127751, 155647, 197873, 638755, 778235, 989365, 2023411, 4825057, 10117055, 24125285, 62725741, 313628705]

約数ペア:

[(1, 313628705), (5, 62725741), (13, 24125285), (31, 10117055), (65, 4825057), (155, 2023411), (317, 989365), (403, 778235), (491, 638755), (1585, 197873), (2015, 155647), (2455, 127751), (4121, 76105), (6383, 49135), (9827, 31915), (15221, 20605)]