2720408085

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131707}}^1$

素因数の和:131744

約数の個数: 48

約数和(自身を含む): 5177704896

約数和(自身を除く): 2457296811

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 4131, 6885, 20655, 131707, 395121, 658535, 1185363, 1975605, 2239019, 3556089, 5926815, 6717057, 10668267, 11195095, 17780445, 20151171, 32004801, 33585285, 53341335, 60453513, 100755855, 160024005, 181360539, 302267565, 544081617, 906802695, 2720408085]

約数ペア:

[(1, 2720408085), (3, 906802695), (5, 544081617), (9, 302267565), (15, 181360539), (17, 160024005), (27, 100755855), (45, 60453513), (51, 53341335), (81, 33585285), (85, 32004801), (135, 20151171), (153, 17780445), (243, 11195095), (255, 10668267), (405, 6717057), (459, 5926815), (765, 3556089), (1215, 2239019), (1377, 1975605), (2295, 1185363), (4131, 658535), (6885, 395121), (20655, 131707)]