20890030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1787}}^1$

素因数の和:1968

約数の個数: 32

約数和(自身を含む): 43255296

約数和(自身を除く): 22365266

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 167, 334, 835, 1169, 1670, 1787, 2338, 3574, 5845, 8935, 11690, 12509, 17870, 25018, 62545, 125090, 298429, 596858, 1492145, 2089003, 2984290, 4178006, 10445015, 20890030]

約数ペア:

[(1, 20890030), (2, 10445015), (5, 4178006), (7, 2984290), (10, 2089003), (14, 1492145), (35, 596858), (70, 298429), (167, 125090), (334, 62545), (835, 25018), (1169, 17870), (1670, 12509), (1787, 11690), (2338, 8935), (3574, 5845)]