128423365

素因数分解:

$5^1\times 7^2\times {\mathrm{293}}^1\times {\mathrm{1789}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 179980920

約数和(自身を除く): 51557555

約数列:

[1, 5, 7, 35, 49, 245, 293, 1465, 1789, 2051, 8945, 10255, 12523, 14357, 62615, 71785, 87661, 438305, 524177, 2620885, 3669239, 18346195, 25684673, 128423365]

約数ペア:

[(1, 128423365), (5, 25684673), (7, 18346195), (35, 3669239), (49, 2620885), (245, 524177), (293, 438305), (1465, 87661), (1789, 71785), (2051, 62615), (8945, 14357), (10255, 12523)]