1313291280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{781721}}^1$

素因数の和:781744

約数の個数: 80

約数和(自身を含む): 4652809344

約数和(自身を除く): 3339518064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 781721, 1563442, 2345163, 3126884, 3908605, 4690326, 5472047, 6253768, 7817210, 9380652, 10944094, 11725815, 12507536, 15634420, 16416141, 18761304, 21888188, 23451630, 27360235, 31268840, 32832282, 37522608, 43776376, 46903260, 54720470, 62537680, 65664564, 82080705, 87552752, 93806520, 109440940, 131329128, 164161410, 187613040, 218881880, 262658256, 328322820, 437763760, 656645640, 1313291280]

約数ペア:

[(1, 1313291280), (2, 656645640), (3, 437763760), (4, 328322820), (5, 262658256), (6, 218881880), (7, 187613040), (8, 164161410), (10, 131329128), (12, 109440940), (14, 93806520), (15, 87552752), (16, 82080705), (20, 65664564), (21, 62537680), (24, 54720470), (28, 46903260), (30, 43776376), (35, 37522608), (40, 32832282), (42, 31268840), (48, 27360235), (56, 23451630), (60, 21888188), (70, 18761304), (80, 16416141), (84, 15634420), (105, 12507536), (112, 11725815), (120, 10944094), (140, 9380652), (168, 7817210), (210, 6253768), (240, 5472047), (280, 4690326), (336, 3908605), (420, 3126884), (560, 2345163), (840, 1563442), (1680, 781721)]