19720262015

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^2\times {\mathrm{11447}}^1$

素因数の和:11699

約数の個数: 24

約数和(自身を含む): 24709134240

約数和(自身を除く): 4988872225

約数列:

[1, 5, 29, 109, 145, 545, 3161, 11447, 11881, 15805, 57235, 59405, 331963, 344549, 1247723, 1659815, 1722745, 6238615, 36183967, 136001807, 180919835, 680009035, 3944052403, 19720262015]

約数ペア:

[(1, 19720262015), (5, 3944052403), (29, 680009035), (109, 180919835), (145, 136001807), (545, 36183967), (3161, 6238615), (11447, 1722745), (11881, 1659815), (15805, 1247723), (57235, 344549), (59405, 331963)]