30820905

素因数分解:

$3^5\times 5^1\times {\mathrm{25367}}^1$

素因数の和:25387

約数の個数: 24

約数和(自身を含む): 55403712

約数和(自身を除く): 24582807

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 25367, 76101, 126835, 228303, 380505, 684909, 1141515, 2054727, 3424545, 6164181, 10273635, 30820905]

約数ペア:

[(1, 30820905), (3, 10273635), (5, 6164181), (9, 3424545), (15, 2054727), (27, 1141515), (45, 684909), (81, 380505), (135, 228303), (243, 126835), (405, 76101), (1215, 25367)]