661416

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 1966080

約数和(自身を除く): 1304664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 127, 168, 186, 217, 248, 254, 372, 381, 434, 508, 651, 744, 762, 868, 889, 1016, 1302, 1524, 1736, 1778, 2604, 2667, 3048, 3556, 3937, 5208, 5334, 7112, 7874, 10668, 11811, 15748, 21336, 23622, 27559, 31496, 47244, 55118, 82677, 94488, 110236, 165354, 220472, 330708, 661416]

約数ペア:

[(1, 661416), (2, 330708), (3, 220472), (4, 165354), (6, 110236), (7, 94488), (8, 82677), (12, 55118), (14, 47244), (21, 31496), (24, 27559), (28, 23622), (31, 21336), (42, 15748), (56, 11811), (62, 10668), (84, 7874), (93, 7112), (124, 5334), (127, 5208), (168, 3937), (186, 3556), (217, 3048), (248, 2667), (254, 2604), (372, 1778), (381, 1736), (434, 1524), (508, 1302), (651, 1016), (744, 889), (762, 868)]