123581248

素因数分解:

$2^6\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1237}}^1$

素因数の和:1479

約数の個数: 56

約数和(自身を含む): 281748992

約数和(自身を除く): 158167744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 223, 224, 446, 448, 892, 1237, 1561, 1784, 2474, 3122, 3568, 4948, 6244, 7136, 8659, 9896, 12488, 14272, 17318, 19792, 24976, 34636, 39584, 49952, 69272, 79168, 99904, 138544, 275851, 277088, 551702, 554176, 1103404, 1930957, 2206808, 3861914, 4413616, 7723828, 8827232, 15447656, 17654464, 30895312, 61790624, 123581248]

約数ペア:

[(1, 123581248), (2, 61790624), (4, 30895312), (7, 17654464), (8, 15447656), (14, 8827232), (16, 7723828), (28, 4413616), (32, 3861914), (56, 2206808), (64, 1930957), (112, 1103404), (223, 554176), (224, 551702), (446, 277088), (448, 275851), (892, 138544), (1237, 99904), (1561, 79168), (1784, 69272), (2474, 49952), (3122, 39584), (3568, 34636), (4948, 24976), (6244, 19792), (7136, 17318), (8659, 14272), (9896, 12488)]