80743120

素因数分解:

$2^4\times 5^1\times {\mathrm{1009289}}^1$

素因数の和:1009302

約数の個数: 20

約数和(自身を含む): 187727940

約数和(自身を除く): 106984820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1009289, 2018578, 4037156, 5046445, 8074312, 10092890, 16148624, 20185780, 40371560, 80743120]

約数ペア:

[(1, 80743120), (2, 40371560), (4, 20185780), (5, 16148624), (8, 10092890), (10, 8074312), (16, 5046445), (20, 4037156), (40, 2018578), (80, 1009289)]