400008

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{2381}}^1$

素因数の和:2397

約数の個数: 32

約数和(自身を含む): 1143360

約数和(自身を除く): 743352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 2381, 4762, 7143, 9524, 14286, 16667, 19048, 28572, 33334, 50001, 57144, 66668, 100002, 133336, 200004, 400008]

約数ペア:

[(1, 400008), (2, 200004), (3, 133336), (4, 100002), (6, 66668), (7, 57144), (8, 50001), (12, 33334), (14, 28572), (21, 19048), (24, 16667), (28, 14286), (42, 9524), (56, 7143), (84, 4762), (168, 2381)]