218785420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1562753}}^1$

素因数の和:1562769

約数の個数: 24

約数和(自身を含む): 525085344

約数和(自身を除く): 306299924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1562753, 3125506, 6251012, 7813765, 10939271, 15627530, 21878542, 31255060, 43757084, 54696355, 109392710, 218785420]

約数ペア:

[(1, 218785420), (2, 109392710), (4, 54696355), (5, 43757084), (7, 31255060), (10, 21878542), (14, 15627530), (20, 10939271), (28, 7813765), (35, 6251012), (70, 3125506), (140, 1562753)]