281635984

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 640244736

約数和(自身を除く): 358608752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 107, 112, 142, 214, 284, 331, 428, 497, 568, 662, 749, 856, 994, 1136, 1324, 1498, 1712, 1988, 2317, 2648, 2996, 3976, 4634, 5296, 5992, 7597, 7952, 9268, 11984, 15194, 18536, 23501, 30388, 35417, 37072, 47002, 53179, 60776, 70834, 94004, 106358, 121552, 141668, 164507, 188008, 212716, 247919, 283336, 329014, 376016, 425432, 495838, 566672, 658028, 850864, 991676, 1316056, 1983352, 2514607, 2632112, 3966704, 5029214, 10058428, 17602249, 20116856, 35204498, 40233712, 70408996, 140817992, 281635984]

約数ペア:

[(1, 281635984), (2, 140817992), (4, 70408996), (7, 40233712), (8, 35204498), (14, 20116856), (16, 17602249), (28, 10058428), (56, 5029214), (71, 3966704), (107, 2632112), (112, 2514607), (142, 1983352), (214, 1316056), (284, 991676), (331, 850864), (428, 658028), (497, 566672), (568, 495838), (662, 425432), (749, 376016), (856, 329014), (994, 283336), (1136, 247919), (1324, 212716), (1498, 188008), (1712, 164507), (1988, 141668), (2317, 121552), (2648, 106358), (2996, 94004), (3976, 70834), (4634, 60776), (5296, 53179), (5992, 47002), (7597, 37072), (7952, 35417), (9268, 30388), (11984, 23501), (15194, 18536)]