172780505

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1\times {\mathrm{1039}}^1$

素因数の和:1544

約数の個数: 16

約数和(自身を含む): 210662400

約数和(自身を除く): 37881895

約数列:

[1, 5, 79, 395, 421, 1039, 2105, 5195, 33259, 82081, 166295, 410405, 437419, 2187095, 34556101, 172780505]

約数ペア:

[(1, 172780505), (5, 34556101), (79, 2187095), (395, 437419), (421, 410405), (1039, 166295), (2105, 82081), (5195, 33259)]