28271488

素因数分解:

$2^7\times 7^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 65116800

約数和(自身を除く): 36845312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 139, 224, 227, 278, 448, 454, 556, 896, 908, 973, 1112, 1589, 1816, 1946, 2224, 3178, 3632, 3892, 4448, 6356, 7264, 7784, 8896, 12712, 14528, 15568, 17792, 25424, 29056, 31136, 31553, 50848, 62272, 63106, 101696, 124544, 126212, 203392, 220871, 252424, 441742, 504848, 883484, 1009696, 1766968, 2019392, 3533936, 4038784, 7067872, 14135744, 28271488]

約数ペア:

[(1, 28271488), (2, 14135744), (4, 7067872), (7, 4038784), (8, 3533936), (14, 2019392), (16, 1766968), (28, 1009696), (32, 883484), (56, 504848), (64, 441742), (112, 252424), (128, 220871), (139, 203392), (224, 126212), (227, 124544), (278, 101696), (448, 63106), (454, 62272), (556, 50848), (896, 31553), (908, 31136), (973, 29056), (1112, 25424), (1589, 17792), (1816, 15568), (1946, 14528), (2224, 12712), (3178, 8896), (3632, 7784), (3892, 7264), (4448, 6356)]