1949990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 4069440

約数和(自身を除く): 2119450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 313, 445, 623, 626, 890, 1246, 1565, 2191, 3115, 3130, 4382, 6230, 10955, 21910, 27857, 55714, 139285, 194999, 278570, 389998, 974995, 1949990]

約数ペア:

[(1, 1949990), (2, 974995), (5, 389998), (7, 278570), (10, 194999), (14, 139285), (35, 55714), (70, 27857), (89, 21910), (178, 10955), (313, 6230), (445, 4382), (623, 3130), (626, 3115), (890, 2191), (1246, 1565)]