139693820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{997813}}^1$

素因数の和:997829

約数の個数: 24

約数和(自身を含む): 335265504

約数和(自身を除く): 195571684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 997813, 1995626, 3991252, 4989065, 6984691, 9978130, 13969382, 19956260, 27938764, 34923455, 69846910, 139693820]

約数ペア:

[(1, 139693820), (2, 69846910), (4, 34923455), (5, 27938764), (7, 19956260), (10, 13969382), (14, 9978130), (20, 6984691), (28, 4989065), (35, 3991252), (70, 1995626), (140, 997813)]