20403488

素因数分解:

$2^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1153}}^1$

素因数の和:1249

約数の個数: 48

約数和(自身を含む): 46529280

約数和(自身を除く): 26125792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 79, 112, 158, 224, 316, 553, 632, 1106, 1153, 1264, 2212, 2306, 2528, 4424, 4612, 8071, 8848, 9224, 16142, 17696, 18448, 32284, 36896, 64568, 91087, 129136, 182174, 258272, 364348, 637609, 728696, 1275218, 1457392, 2550436, 2914784, 5100872, 10201744, 20403488]

約数ペア:

[(1, 20403488), (2, 10201744), (4, 5100872), (7, 2914784), (8, 2550436), (14, 1457392), (16, 1275218), (28, 728696), (32, 637609), (56, 364348), (79, 258272), (112, 182174), (158, 129136), (224, 91087), (316, 64568), (553, 36896), (632, 32284), (1106, 18448), (1153, 17696), (1264, 16142), (2212, 9224), (2306, 8848), (2528, 8071), (4424, 4612)]