20278384

素因数分解:

$2^4\times 7^1\times {\mathrm{331}}^1\times {\mathrm{547}}^1$

素因数の和:893

約数の個数: 40

約数和(自身を含む): 45120128

約数和(自身を除く): 24841744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 331, 547, 662, 1094, 1324, 2188, 2317, 2648, 3829, 4376, 4634, 5296, 7658, 8752, 9268, 15316, 18536, 30632, 37072, 61264, 181057, 362114, 724228, 1267399, 1448456, 2534798, 2896912, 5069596, 10139192, 20278384]

約数ペア:

[(1, 20278384), (2, 10139192), (4, 5069596), (7, 2896912), (8, 2534798), (14, 1448456), (16, 1267399), (28, 724228), (56, 362114), (112, 181057), (331, 61264), (547, 37072), (662, 30632), (1094, 18536), (1324, 15316), (2188, 9268), (2317, 8752), (2648, 7658), (3829, 5296), (4376, 4634)]