129888512

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1319

約数の個数: 72

約数和(自身を含む): 288449280

約数和(自身を除く): 158560768

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 806, 832, 992, 1259, 1612, 1664, 1984, 2518, 3224, 3328, 3968, 5036, 6448, 7936, 10072, 12896, 16367, 20144, 25792, 32734, 39029, 40288, 51584, 65468, 78058, 80576, 103168, 130936, 156116, 161152, 261872, 312232, 322304, 507377, 523744, 624464, 1014754, 1047488, 1248928, 2029508, 2094976, 2497856, 4059016, 4189952, 4995712, 8118032, 9991424, 16236064, 32472128, 64944256, 129888512]

約数ペア:

[(1, 129888512), (2, 64944256), (4, 32472128), (8, 16236064), (13, 9991424), (16, 8118032), (26, 4995712), (31, 4189952), (32, 4059016), (52, 2497856), (62, 2094976), (64, 2029508), (104, 1248928), (124, 1047488), (128, 1014754), (208, 624464), (248, 523744), (256, 507377), (403, 322304), (416, 312232), (496, 261872), (806, 161152), (832, 156116), (992, 130936), (1259, 103168), (1612, 80576), (1664, 78058), (1984, 65468), (2518, 51584), (3224, 40288), (3328, 39029), (3968, 32734), (5036, 25792), (6448, 20144), (7936, 16367), (10072, 12896)]