128020905

素因数分解:

$3^5\times 5^1\times {\mathrm{105367}}^1$

素因数の和:105387

約数の個数: 24

約数和(自身を含む): 230123712

約数和(自身を除く): 102102807

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 105367, 316101, 526835, 948303, 1580505, 2844909, 4741515, 8534727, 14224545, 25604181, 42673635, 128020905]

約数ペア:

[(1, 128020905), (3, 42673635), (5, 25604181), (9, 14224545), (15, 8534727), (27, 4741515), (45, 2844909), (81, 1580505), (135, 948303), (243, 526835), (405, 316101), (1215, 105367)]