19700020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22907}}^1$

素因数の和:22959

約数の個数: 24

約数和(自身を含む): 42333984

約数和(自身を除く): 22633964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22907, 45814, 91628, 114535, 229070, 458140, 985001, 1970002, 3940004, 4925005, 9850010, 19700020]

約数ペア:

[(1, 19700020), (2, 9850010), (4, 4925005), (5, 3940004), (10, 1970002), (20, 985001), (43, 458140), (86, 229070), (172, 114535), (215, 91628), (430, 45814), (860, 22907)]