261207808

素因数分解:

$2^8\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 538038032

約数和(自身を除く): 276830224

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 97, 128, 134, 157, 194, 256, 268, 314, 388, 536, 628, 776, 1072, 1256, 1552, 2144, 2512, 3104, 4288, 5024, 6208, 6499, 8576, 10048, 10519, 12416, 12998, 15229, 17152, 20096, 21038, 24832, 25996, 30458, 40192, 42076, 51992, 60916, 84152, 103984, 121832, 168304, 207968, 243664, 336608, 415936, 487328, 673216, 831872, 974656, 1020343, 1346432, 1663744, 1949312, 2040686, 2692864, 3898624, 4081372, 8162744, 16325488, 32650976, 65301952, 130603904, 261207808]

約数ペア:

[(1, 261207808), (2, 130603904), (4, 65301952), (8, 32650976), (16, 16325488), (32, 8162744), (64, 4081372), (67, 3898624), (97, 2692864), (128, 2040686), (134, 1949312), (157, 1663744), (194, 1346432), (256, 1020343), (268, 974656), (314, 831872), (388, 673216), (536, 487328), (628, 415936), (776, 336608), (1072, 243664), (1256, 207968), (1552, 168304), (2144, 121832), (2512, 103984), (3104, 84152), (4288, 60916), (5024, 51992), (6208, 42076), (6499, 40192), (8576, 30458), (10048, 25996), (10519, 24832), (12416, 21038), (12998, 20096), (15229, 17152)]