220161640

素因数分解:

$2^3\times 5^1\times {\mathrm{5504041}}^1$

素因数の和:5504052

約数の個数: 16

約数和(自身を含む): 495363780

約数和(自身を除く): 275202140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5504041, 11008082, 22016164, 27520205, 44032328, 55040410, 110080820, 220161640]

約数ペア:

[(1, 220161640), (2, 110080820), (4, 55040410), (5, 44032328), (8, 27520205), (10, 22016164), (20, 11008082), (40, 5504041)]