20680016

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6367}}^1$

素因数の和:6411

約数の個数: 40

約数和(自身を含む): 47377920

約数和(自身を除く): 26697904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6367, 12734, 25468, 44569, 50936, 89138, 101872, 178276, 184643, 356552, 369286, 713104, 738572, 1292501, 1477144, 2585002, 2954288, 5170004, 10340008, 20680016]

約数ペア:

[(1, 20680016), (2, 10340008), (4, 5170004), (7, 2954288), (8, 2585002), (14, 1477144), (16, 1292501), (28, 738572), (29, 713104), (56, 369286), (58, 356552), (112, 184643), (116, 178276), (203, 101872), (232, 89138), (406, 50936), (464, 44569), (812, 25468), (1624, 12734), (3248, 6367)]