1288987895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{204439}}^1$

素因数の和:204554

約数の個数: 16

約数和(自身を含む): 1682950080

約数和(自身を除く): 393962185

約数列:

[1, 5, 13, 65, 97, 485, 1261, 6305, 204439, 1022195, 2657707, 13288535, 19830583, 99152915, 257797579, 1288987895]

約数ペア:

[(1, 1288987895), (5, 257797579), (13, 99152915), (65, 19830583), (97, 13288535), (485, 2657707), (1261, 1022195), (6305, 204439)]