278319700

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{20023}}^1$

素因数の和:20176

約数の個数: 36

約数和(自身を含む): 608329120

約数和(自身を除く): 330009420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2780, 3475, 6950, 13900, 20023, 40046, 80092, 100115, 200230, 400460, 500575, 1001150, 2002300, 2783197, 5566394, 11132788, 13915985, 27831970, 55663940, 69579925, 139159850, 278319700]

約数ペア:

[(1, 278319700), (2, 139159850), (4, 69579925), (5, 55663940), (10, 27831970), (20, 13915985), (25, 11132788), (50, 5566394), (100, 2783197), (139, 2002300), (278, 1001150), (556, 500575), (695, 400460), (1390, 200230), (2780, 100115), (3475, 80092), (6950, 40046), (13900, 20023)]