639617792

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:506

約数の個数: 144

約数和(自身を含む): 1525837824

約数和(自身を除く): 886220032

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 31, 32, 34, 44, 62, 64, 68, 88, 124, 128, 136, 176, 187, 248, 256, 272, 341, 352, 374, 431, 496, 527, 544, 682, 704, 748, 862, 992, 1054, 1088, 1364, 1408, 1496, 1724, 1984, 2108, 2176, 2728, 2816, 2992, 3448, 3968, 4216, 4352, 4741, 5456, 5797, 5984, 6896, 7327, 7936, 8432, 9482, 10912, 11594, 11968, 13361, 13792, 14654, 16864, 18964, 21824, 23188, 23936, 26722, 27584, 29308, 33728, 37928, 43648, 46376, 47872, 53444, 55168, 58616, 67456, 75856, 80597, 87296, 92752, 106888, 110336, 117232, 134912, 146971, 151712, 161194, 185504, 213776, 227137, 234464, 293942, 303424, 322388, 371008, 427552, 454274, 468928, 587884, 606848, 644776, 742016, 855104, 908548, 937856, 1175768, 1213696, 1289552, 1484032, 1710208, 1817096, 1875712, 2351536, 2498507, 2579104, 3420416, 3634192, 4703072, 4997014, 5158208, 7268384, 9406144, 9994028, 10316416, 14536768, 18812288, 19988056, 20632832, 29073536, 37624576, 39976112, 58147072, 79952224, 159904448, 319808896, 639617792]

約数ペア:

[(1, 639617792), (2, 319808896), (4, 159904448), (8, 79952224), (11, 58147072), (16, 39976112), (17, 37624576), (22, 29073536), (31, 20632832), (32, 19988056), (34, 18812288), (44, 14536768), (62, 10316416), (64, 9994028), (68, 9406144), (88, 7268384), (124, 5158208), (128, 4997014), (136, 4703072), (176, 3634192), (187, 3420416), (248, 2579104), (256, 2498507), (272, 2351536), (341, 1875712), (352, 1817096), (374, 1710208), (431, 1484032), (496, 1289552), (527, 1213696), (544, 1175768), (682, 937856), (704, 908548), (748, 855104), (862, 742016), (992, 644776), (1054, 606848), (1088, 587884), (1364, 468928), (1408, 454274), (1496, 427552), (1724, 371008), (1984, 322388), (2108, 303424), (2176, 293942), (2728, 234464), (2816, 227137), (2992, 213776), (3448, 185504), (3968, 161194), (4216, 151712), (4352, 146971), (4741, 134912), (5456, 117232), (5797, 110336), (5984, 106888), (6896, 92752), (7327, 87296), (7936, 80597), (8432, 75856), (9482, 67456), (10912, 58616), (11594, 55168), (11968, 53444), (13361, 47872), (13792, 46376), (14654, 43648), (16864, 37928), (18964, 33728), (21824, 29308), (23188, 27584), (23936, 26722)]