640791359

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1579}}^1$

素因数の和:1695

約数の個数: 32

約数和(自身を含む): 764467200

約数和(自身を除く): 123675841

約数列:

[1, 13, 19, 31, 53, 247, 403, 589, 689, 1007, 1579, 1643, 7657, 13091, 20527, 21359, 30001, 31217, 48949, 83687, 390013, 405821, 636337, 930031, 1087931, 1590053, 2594297, 12090403, 20670689, 33725861, 49291643, 640791359]

約数ペア:

[(1, 640791359), (13, 49291643), (19, 33725861), (31, 20670689), (53, 12090403), (247, 2594297), (403, 1590053), (589, 1087931), (689, 930031), (1007, 636337), (1579, 405821), (1643, 390013), (7657, 83687), (13091, 48949), (20527, 31217), (21359, 30001)]