68304420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2417}}^1$

素因数の和:2589

約数の個数: 72

約数和(自身を含む): 208596024

約数和(自身を除く): 140291604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2417, 2826, 3140, 4710, 4834, 5652, 7065, 7251, 9420, 9668, 12085, 14130, 14502, 21753, 24170, 28260, 29004, 36255, 43506, 48340, 72510, 87012, 108765, 145020, 217530, 379469, 435060, 758938, 1138407, 1517876, 1897345, 2276814, 3415221, 3794690, 4553628, 5692035, 6830442, 7589380, 11384070, 13660884, 17076105, 22768140, 34152210, 68304420]

約数ペア:

[(1, 68304420), (2, 34152210), (3, 22768140), (4, 17076105), (5, 13660884), (6, 11384070), (9, 7589380), (10, 6830442), (12, 5692035), (15, 4553628), (18, 3794690), (20, 3415221), (30, 2276814), (36, 1897345), (45, 1517876), (60, 1138407), (90, 758938), (157, 435060), (180, 379469), (314, 217530), (471, 145020), (628, 108765), (785, 87012), (942, 72510), (1413, 48340), (1570, 43506), (1884, 36255), (2355, 29004), (2417, 28260), (2826, 24170), (3140, 21753), (4710, 14502), (4834, 14130), (5652, 12085), (7065, 9668), (7251, 9420)]