31381360

素因数分解:

$2^4\times 5^1\times {\mathrm{392267}}^1$

素因数の和:392280

約数の個数: 20

約数和(自身を含む): 72961848

約数和(自身を除く): 41580488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 392267, 784534, 1569068, 1961335, 3138136, 3922670, 6276272, 7845340, 15690680, 31381360]

約数ペア:

[(1, 31381360), (2, 15690680), (4, 7845340), (5, 6276272), (8, 3922670), (10, 3138136), (16, 1961335), (20, 1569068), (40, 784534), (80, 392267)]