20443640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73013}}^1$

素因数の和:73031

約数の個数: 32

約数和(自身を含む): 52570080

約数和(自身を除く): 32126440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73013, 146026, 292052, 365065, 511091, 584104, 730130, 1022182, 1460260, 2044364, 2555455, 2920520, 4088728, 5110910, 10221820, 20443640]

約数ペア:

[(1, 20443640), (2, 10221820), (4, 5110910), (5, 4088728), (7, 2920520), (8, 2555455), (10, 2044364), (14, 1460260), (20, 1022182), (28, 730130), (35, 584104), (40, 511091), (56, 365065), (70, 292052), (140, 146026), (280, 73013)]