18781630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3779}}^1$

素因数の和:3864

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 20409410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 3779, 4970, 7558, 18895, 26453, 37790, 52906, 132265, 264530, 268309, 536618, 1341545, 1878163, 2683090, 3756326, 9390815, 18781630]

約数ペア:

[(1, 18781630), (2, 9390815), (5, 3756326), (7, 2683090), (10, 1878163), (14, 1341545), (35, 536618), (70, 268309), (71, 264530), (142, 132265), (355, 52906), (497, 37790), (710, 26453), (994, 18895), (2485, 7558), (3779, 4970)]