20171120912

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{499}}^1\times {\mathrm{28387}}^1$

素因数の和:28983

約数の個数: 40

約数和(自身を含む): 39601260000

約数和(自身を除く): 19430139088

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 499, 712, 998, 1424, 1996, 3992, 7984, 28387, 44411, 56774, 88822, 113548, 177644, 227096, 355288, 454192, 710576, 2526443, 5052886, 10105772, 14165113, 20211544, 28330226, 40423088, 56660452, 113320904, 226641808, 1260695057, 2521390114, 5042780228, 10085560456, 20171120912]

約数ペア:

[(1, 20171120912), (2, 10085560456), (4, 5042780228), (8, 2521390114), (16, 1260695057), (89, 226641808), (178, 113320904), (356, 56660452), (499, 40423088), (712, 28330226), (998, 20211544), (1424, 14165113), (1996, 10105772), (3992, 5052886), (7984, 2526443), (28387, 710576), (44411, 454192), (56774, 355288), (88822, 227096), (113548, 177644)]