179968520

素因数分解:

$2^3\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{4057}}^1$

素因数の和:5177

約数の個数: 32

約数和(自身を含む): 405394200

約数和(自身を除く): 225425680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1109, 2218, 4057, 4436, 5545, 8114, 8872, 11090, 16228, 20285, 22180, 32456, 40570, 44360, 81140, 162280, 4499213, 8998426, 17996852, 22496065, 35993704, 44992130, 89984260, 179968520]

約数ペア:

[(1, 179968520), (2, 89984260), (4, 44992130), (5, 35993704), (8, 22496065), (10, 17996852), (20, 8998426), (40, 4499213), (1109, 162280), (2218, 81140), (4057, 44360), (4436, 40570), (5545, 32456), (8114, 22180), (8872, 20285), (11090, 16228)]