8140905

素因数分解:

$3^4\times 5^1\times {\mathrm{20101}}^1$

素因数の和:20118

約数の個数: 20

約数和(自身を含む): 14594052

約数和(自身を除く): 6453147

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 20101, 60303, 100505, 180909, 301515, 542727, 904545, 1628181, 2713635, 8140905]

約数ペア:

[(1, 8140905), (3, 2713635), (5, 1628181), (9, 904545), (15, 542727), (27, 301515), (45, 180909), (81, 100505), (135, 60303), (405, 20101)]