19259620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7351}}^1$

素因数の和:7491

約数の個数: 24

約数和(自身を含む): 40759488

約数和(自身を除く): 21499868

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7351, 14702, 29404, 36755, 73510, 147020, 962981, 1925962, 3851924, 4814905, 9629810, 19259620]

約数ペア:

[(1, 19259620), (2, 9629810), (4, 4814905), (5, 3851924), (10, 1925962), (20, 962981), (131, 147020), (262, 73510), (524, 36755), (655, 29404), (1310, 14702), (2620, 7351)]