131507440

素因数分解:

$2^4\times 5^1\times {\mathrm{1643843}}^1$

素因数の和:1643856

約数の個数: 20

約数和(自身を含む): 305754984

約数和(自身を除く): 174247544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1643843, 3287686, 6575372, 8219215, 13150744, 16438430, 26301488, 32876860, 65753720, 131507440]

約数ペア:

[(1, 131507440), (2, 65753720), (4, 32876860), (5, 26301488), (8, 16438430), (10, 13150744), (16, 8219215), (20, 6575372), (40, 3287686), (80, 1643843)]