256172553

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{653}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 457067520

約数和(自身を除く): 200894967

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 479, 653, 819, 1437, 1959, 3353, 4311, 4571, 5877, 6227, 8489, 10059, 13713, 18681, 25467, 30177, 41139, 43589, 56043, 59423, 76401, 130767, 178269, 312787, 392301, 534807, 938361, 2189509, 2815083, 4066231, 6568527, 12198693, 19705581, 28463617, 36596079, 85390851, 256172553]

約数ペア:

[(1, 256172553), (3, 85390851), (7, 36596079), (9, 28463617), (13, 19705581), (21, 12198693), (39, 6568527), (63, 4066231), (91, 2815083), (117, 2189509), (273, 938361), (479, 534807), (653, 392301), (819, 312787), (1437, 178269), (1959, 130767), (3353, 76401), (4311, 59423), (4571, 56043), (5877, 43589), (6227, 41139), (8489, 30177), (10059, 25467), (13713, 18681)]