9870100

素因数分解:

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

素因数の和:1212

約数の個数: 36

約数和(自身を含む): 21678300

約数和(自身を除く): 11808200

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1109, 1780, 2218, 2225, 4436, 4450, 5545, 8900, 11090, 22180, 27725, 55450, 98701, 110900, 197402, 394804, 493505, 987010, 1974020, 2467525, 4935050, 9870100]

約数ペア:

[(1, 9870100), (2, 4935050), (4, 2467525), (5, 1974020), (10, 987010), (20, 493505), (25, 394804), (50, 197402), (89, 110900), (100, 98701), (178, 55450), (356, 27725), (445, 22180), (890, 11090), (1109, 8900), (1780, 5545), (2218, 4450), (2225, 4436)]