81681516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11177}}^1$

素因数の和:11223

約数の個数: 72

約数和(自身を含む): 244127520

約数和(自身を除く): 162446004

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, 11177, 22354, 33531, 44708, 67062, 78239, 100593, 134124, 156478, 201186, 234717, 312956, 324133, 402372, 469434, 648266, 704151, 938868, 972399, 1296532, 1408302, 1944798, 2268931, 2816604, 2917197, 3889596, 4537862, 5834394, 6806793, 9075724, 11668788, 13613586, 20420379, 27227172, 40840758, 81681516]

約数ペア:

[(1, 81681516), (2, 40840758), (3, 27227172), (4, 20420379), (6, 13613586), (7, 11668788), (9, 9075724), (12, 6806793), (14, 5834394), (18, 4537862), (21, 3889596), (28, 2917197), (29, 2816604), (36, 2268931), (42, 1944798), (58, 1408302), (63, 1296532), (84, 972399), (87, 938868), (116, 704151), (126, 648266), (174, 469434), (203, 402372), (252, 324133), (261, 312956), (348, 234717), (406, 201186), (522, 156478), (609, 134124), (812, 100593), (1044, 78239), (1218, 67062), (1827, 44708), (2436, 33531), (3654, 22354), (7308, 11177)]