19188890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{39161}}^1$

素因数の和:39182

約数の個数: 24

約数和(自身を含む): 40180212

約数和(自身を除く): 20991322

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 39161, 78322, 195805, 274127, 391610, 548254, 1370635, 1918889, 2741270, 3837778, 9594445, 19188890]

約数ペア:

[(1, 19188890), (2, 9594445), (5, 3837778), (7, 2741270), (10, 1918889), (14, 1370635), (35, 548254), (49, 391610), (70, 274127), (98, 195805), (245, 78322), (490, 39161)]