81436572

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{461}}^1\times {\mathrm{701}}^1$

素因数の和:1179

約数の個数: 72

約数和(自身を含む): 236107872

約数和(自身を除く): 154671300

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 461, 701, 922, 1383, 1402, 1844, 2103, 2766, 2804, 3227, 4149, 4206, 4907, 5532, 6309, 6454, 8298, 8412, 9681, 9814, 12618, 12908, 14721, 16596, 19362, 19628, 25236, 29043, 29442, 38724, 44163, 58086, 58884, 88326, 116172, 176652, 323161, 646322, 969483, 1292644, 1938966, 2262127, 2908449, 3877932, 4524254, 5816898, 6786381, 9048508, 11633796, 13572762, 20359143, 27145524, 40718286, 81436572]

約数ペア:

[(1, 81436572), (2, 40718286), (3, 27145524), (4, 20359143), (6, 13572762), (7, 11633796), (9, 9048508), (12, 6786381), (14, 5816898), (18, 4524254), (21, 3877932), (28, 2908449), (36, 2262127), (42, 1938966), (63, 1292644), (84, 969483), (126, 646322), (252, 323161), (461, 176652), (701, 116172), (922, 88326), (1383, 58884), (1402, 58086), (1844, 44163), (2103, 38724), (2766, 29442), (2804, 29043), (3227, 25236), (4149, 19628), (4206, 19362), (4907, 16596), (5532, 14721), (6309, 12908), (6454, 12618), (8298, 9814), (8412, 9681)]