1991401552

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3109}}^1$

素因数の和:3193

約数の個数: 120

約数和(自身を含む): 4835925600

約数和(自身を除く): 2844524048

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 43, 49, 56, 76, 86, 98, 112, 133, 152, 172, 196, 266, 301, 304, 344, 392, 532, 602, 688, 784, 817, 931, 1064, 1204, 1634, 1862, 2107, 2128, 2408, 3109, 3268, 3724, 4214, 4816, 5719, 6218, 6536, 7448, 8428, 11438, 12436, 13072, 14896, 16856, 21763, 22876, 24872, 33712, 40033, 43526, 45752, 49744, 59071, 80066, 87052, 91504, 118142, 133687, 152341, 160132, 174104, 236284, 267374, 304682, 320264, 348208, 413497, 472568, 534748, 609364, 640528, 826994, 935809, 945136, 1069496, 1218728, 1653988, 1871618, 2138992, 2437456, 2540053, 2894479, 3307976, 3743236, 5080106, 5788958, 6550663, 6615952, 7486472, 10160212, 11577916, 13101326, 14972944, 17780371, 20320424, 23155832, 26202652, 35560742, 40640848, 46311664, 52405304, 71121484, 104810608, 124462597, 142242968, 248925194, 284485936, 497850388, 995700776, 1991401552]

約数ペア:

[(1, 1991401552), (2, 995700776), (4, 497850388), (7, 284485936), (8, 248925194), (14, 142242968), (16, 124462597), (19, 104810608), (28, 71121484), (38, 52405304), (43, 46311664), (49, 40640848), (56, 35560742), (76, 26202652), (86, 23155832), (98, 20320424), (112, 17780371), (133, 14972944), (152, 13101326), (172, 11577916), (196, 10160212), (266, 7486472), (301, 6615952), (304, 6550663), (344, 5788958), (392, 5080106), (532, 3743236), (602, 3307976), (688, 2894479), (784, 2540053), (817, 2437456), (931, 2138992), (1064, 1871618), (1204, 1653988), (1634, 1218728), (1862, 1069496), (2107, 945136), (2128, 935809), (2408, 826994), (3109, 640528), (3268, 609364), (3724, 534748), (4214, 472568), (4816, 413497), (5719, 348208), (6218, 320264), (6536, 304682), (7448, 267374), (8428, 236284), (11438, 174104), (12436, 160132), (13072, 152341), (14896, 133687), (16856, 118142), (21763, 91504), (22876, 87052), (24872, 80066), (33712, 59071), (40033, 49744), (43526, 45752)]