19879930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3191}}^1$

素因数の和:3294

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 21488390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3191, 6230, 6382, 15955, 22337, 31910, 44674, 111685, 223370, 283999, 567998, 1419995, 1987993, 2839990, 3975986, 9939965, 19879930]

約数ペア:

[(1, 19879930), (2, 9939965), (5, 3975986), (7, 2839990), (10, 1987993), (14, 1419995), (35, 567998), (70, 283999), (89, 223370), (178, 111685), (445, 44674), (623, 31910), (890, 22337), (1246, 15955), (3115, 6382), (3191, 6230)]