163980040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{585643}}^1$

素因数の和:585661

約数の個数: 32

約数和(自身を含む): 421663680

約数和(自身を除く): 257683640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 585643, 1171286, 2342572, 2928215, 4099501, 4685144, 5856430, 8199002, 11712860, 16398004, 20497505, 23425720, 32796008, 40995010, 81990020, 163980040]

約数ペア:

[(1, 163980040), (2, 81990020), (4, 40995010), (5, 32796008), (7, 23425720), (8, 20497505), (10, 16398004), (14, 11712860), (20, 8199002), (28, 5856430), (35, 4685144), (40, 4099501), (56, 2928215), (70, 2342572), (140, 1171286), (280, 585643)]