20654326832

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1\times {\mathrm{461}}^1$

素因数の和:1062

約数の個数: 80

約数和(自身を含む): 41206112640

約数和(自身を除く): 20551785808

約数列:

[1, 2, 4, 8, 16, 73, 89, 146, 178, 292, 356, 431, 461, 584, 712, 862, 922, 1168, 1424, 1724, 1844, 3448, 3688, 6497, 6896, 7376, 12994, 25988, 31463, 33653, 38359, 41029, 51976, 62926, 67306, 76718, 82058, 103952, 125852, 134612, 153436, 164116, 198691, 251704, 269224, 306872, 328232, 397382, 503408, 538448, 613744, 656464, 794764, 1589528, 2800207, 2995117, 3179056, 5600414, 5990234, 11200828, 11980468, 14504443, 17683499, 22401656, 23960936, 29008886, 35366998, 44803312, 47921872, 58017772, 70733996, 116035544, 141467992, 232071088, 282935984, 1290895427, 2581790854, 5163581708, 10327163416, 20654326832]

約数ペア:

[(1, 20654326832), (2, 10327163416), (4, 5163581708), (8, 2581790854), (16, 1290895427), (73, 282935984), (89, 232071088), (146, 141467992), (178, 116035544), (292, 70733996), (356, 58017772), (431, 47921872), (461, 44803312), (584, 35366998), (712, 29008886), (862, 23960936), (922, 22401656), (1168, 17683499), (1424, 14504443), (1724, 11980468), (1844, 11200828), (3448, 5990234), (3688, 5600414), (6497, 3179056), (6896, 2995117), (7376, 2800207), (12994, 1589528), (25988, 794764), (31463, 656464), (33653, 613744), (38359, 538448), (41029, 503408), (51976, 397382), (62926, 328232), (67306, 306872), (76718, 269224), (82058, 251704), (103952, 198691), (125852, 164116), (134612, 153436)]