81891864

素因数分解:

$2^3\times 3^3\times {\mathrm{271}}^1\times {\mathrm{1399}}^1$

素因数の和:1685

約数の個数: 64

約数和(自身を含む): 228480000

約数和(自身を除く): 146588136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 271, 542, 813, 1084, 1399, 1626, 2168, 2439, 2798, 3252, 4197, 4878, 5596, 6504, 7317, 8394, 9756, 11192, 12591, 14634, 16788, 19512, 25182, 29268, 33576, 37773, 50364, 58536, 75546, 100728, 151092, 302184, 379129, 758258, 1137387, 1516516, 2274774, 3033032, 3412161, 4549548, 6824322, 9099096, 10236483, 13648644, 20472966, 27297288, 40945932, 81891864]

約数ペア:

[(1, 81891864), (2, 40945932), (3, 27297288), (4, 20472966), (6, 13648644), (8, 10236483), (9, 9099096), (12, 6824322), (18, 4549548), (24, 3412161), (27, 3033032), (36, 2274774), (54, 1516516), (72, 1137387), (108, 758258), (216, 379129), (271, 302184), (542, 151092), (813, 100728), (1084, 75546), (1399, 58536), (1626, 50364), (2168, 37773), (2439, 33576), (2798, 29268), (3252, 25182), (4197, 19512), (4878, 16788), (5596, 14634), (6504, 12591), (7317, 11192), (8394, 9756)]