28740040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102643}}^1$

素因数の和:102661

約数の個数: 32

約数和(自身を含む): 73903680

約数和(自身を除く): 45163640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102643, 205286, 410572, 513215, 718501, 821144, 1026430, 1437002, 2052860, 2874004, 3592505, 4105720, 5748008, 7185010, 14370020, 28740040]

約数ペア:

[(1, 28740040), (2, 14370020), (4, 7185010), (5, 5748008), (7, 4105720), (8, 3592505), (10, 2874004), (14, 2052860), (20, 1437002), (28, 1026430), (35, 821144), (40, 718501), (56, 513215), (70, 410572), (140, 205286), (280, 102643)]