66620680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1039}}^1$

素因数の和:1286

約数の個数: 64

約数和(自身を含む): 172224000

約数和(自身を除く): 105603320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 916, 1039, 1145, 1603, 1832, 2078, 2290, 3206, 4156, 4580, 5195, 6412, 7273, 8015, 8312, 9160, 10390, 12824, 14546, 16030, 20780, 29092, 32060, 36365, 41560, 58184, 64120, 72730, 145460, 237931, 290920, 475862, 951724, 1189655, 1665517, 1903448, 2379310, 3331034, 4758620, 6662068, 8327585, 9517240, 13324136, 16655170, 33310340, 66620680]

約数ペア:

[(1, 66620680), (2, 33310340), (4, 16655170), (5, 13324136), (7, 9517240), (8, 8327585), (10, 6662068), (14, 4758620), (20, 3331034), (28, 2379310), (35, 1903448), (40, 1665517), (56, 1189655), (70, 951724), (140, 475862), (229, 290920), (280, 237931), (458, 145460), (916, 72730), (1039, 64120), (1145, 58184), (1603, 41560), (1832, 36365), (2078, 32060), (2290, 29092), (3206, 20780), (4156, 16030), (4580, 14546), (5195, 12824), (6412, 10390), (7273, 9160), (8015, 8312)]