221740820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1583863}}^1$

素因数の和:1583879

約数の個数: 24

約数和(自身を含む): 532178304

約数和(自身を除く): 310437484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1583863, 3167726, 6335452, 7919315, 11087041, 15838630, 22174082, 31677260, 44348164, 55435205, 110870410, 221740820]

約数ペア:

[(1, 221740820), (2, 110870410), (4, 55435205), (5, 44348164), (7, 31677260), (10, 22174082), (14, 15838630), (20, 11087041), (28, 7919315), (35, 6335452), (70, 3167726), (140, 1583863)]