1974020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 4195800

約数和(自身を除く): 2221780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1109, 1780, 2218, 4436, 5545, 11090, 22180, 98701, 197402, 394804, 493505, 987010, 1974020]

約数ペア:

[(1, 1974020), (2, 987010), (4, 493505), (5, 394804), (10, 197402), (20, 98701), (89, 22180), (178, 11090), (356, 5545), (445, 4436), (890, 2218), (1109, 1780)]