720902715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1381}}^1\times {\mathrm{2677}}^1$

素因数の和:4079

約数の個数: 32

約数和(自身を含む): 1243534656

約数和(自身を除く): 522631941

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 1381, 2677, 4143, 6905, 8031, 13385, 17953, 20715, 34801, 40155, 53859, 89765, 104403, 174005, 269295, 522015, 3696937, 11090811, 18484685, 48060181, 55454055, 144180543, 240300905, 720902715]

約数ペア:

[(1, 720902715), (3, 240300905), (5, 144180543), (13, 55454055), (15, 48060181), (39, 18484685), (65, 11090811), (195, 3696937), (1381, 522015), (2677, 269295), (4143, 174005), (6905, 104403), (8031, 89765), (13385, 53859), (17953, 40155), (20715, 34801)]