20158953568

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{723269}}^1$

素因数の和:723359

約数の個数: 48

約数和(自身を含む): 43378841520

約数和(自身を除く): 23219887952

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 871, 1072, 1742, 2144, 3484, 6968, 13936, 27872, 723269, 1446538, 2893076, 5786152, 9402497, 11572304, 18804994, 23144608, 37609988, 48459023, 75219976, 96918046, 150439952, 193836092, 300879904, 387672184, 629967299, 775344368, 1259934598, 1550688736, 2519869196, 5039738392, 10079476784, 20158953568]

約数ペア:

[(1, 20158953568), (2, 10079476784), (4, 5039738392), (8, 2519869196), (13, 1550688736), (16, 1259934598), (26, 775344368), (32, 629967299), (52, 387672184), (67, 300879904), (104, 193836092), (134, 150439952), (208, 96918046), (268, 75219976), (416, 48459023), (536, 37609988), (871, 23144608), (1072, 18804994), (1742, 11572304), (2144, 9402497), (3484, 5786152), (6968, 2893076), (13936, 1446538), (27872, 723269)]