126563320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243391}}^1$

素因数の和:243415

約数の個数: 32

約数和(自身を含む): 306673920

約数和(自身を除く): 180110600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 243391, 486782, 973564, 1216955, 1947128, 2433910, 3164083, 4867820, 6328166, 9735640, 12656332, 15820415, 25312664, 31640830, 63281660, 126563320]

約数ペア:

[(1, 126563320), (2, 63281660), (4, 31640830), (5, 25312664), (8, 15820415), (10, 12656332), (13, 9735640), (20, 6328166), (26, 4867820), (40, 3164083), (52, 2433910), (65, 1947128), (104, 1216955), (130, 973564), (260, 486782), (520, 243391)]