81564588

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11161}}^1$

素因数の和:11207

約数の個数: 72

約数和(自身を含む): 243778080

約数和(自身を除く): 162213492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 116, 126, 174, 203, 252, 261, 348, 406, 522, 609, 812, 1044, 1218, 1827, 2436, 3654, 7308, 11161, 22322, 33483, 44644, 66966, 78127, 100449, 133932, 156254, 200898, 234381, 312508, 323669, 401796, 468762, 647338, 703143, 937524, 971007, 1294676, 1406286, 1942014, 2265683, 2812572, 2913021, 3884028, 4531366, 5826042, 6797049, 9062732, 11652084, 13594098, 20391147, 27188196, 40782294, 81564588]

約数ペア:

[(1, 81564588), (2, 40782294), (3, 27188196), (4, 20391147), (6, 13594098), (7, 11652084), (9, 9062732), (12, 6797049), (14, 5826042), (18, 4531366), (21, 3884028), (28, 2913021), (29, 2812572), (36, 2265683), (42, 1942014), (58, 1406286), (63, 1294676), (84, 971007), (87, 937524), (116, 703143), (126, 647338), (174, 468762), (203, 401796), (252, 323669), (261, 312508), (348, 234381), (406, 200898), (522, 156254), (609, 133932), (812, 100449), (1044, 78127), (1218, 66966), (1827, 44644), (2436, 33483), (3654, 22322), (7308, 11161)]