72198140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{515701}}^1$

素因数の和:515717

約数の個数: 24

約数和(自身を含む): 173275872

約数和(自身を除く): 101077732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 515701, 1031402, 2062804, 2578505, 3609907, 5157010, 7219814, 10314020, 14439628, 18049535, 36099070, 72198140]

約数ペア:

[(1, 72198140), (2, 36099070), (4, 18049535), (5, 14439628), (7, 10314020), (10, 7219814), (14, 5157010), (20, 3609907), (28, 2578505), (35, 2062804), (70, 1031402), (140, 515701)]