2019925625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{170099}}^1$

素因数の和:170138

約数の個数: 20

約数和(自身を含む): 2656962000

約数和(自身を除く): 637036375

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 2375, 11875, 170099, 850495, 3231881, 4252475, 16159405, 21262375, 80797025, 106311875, 403985125, 2019925625]

約数ペア:

[(1, 2019925625), (5, 403985125), (19, 106311875), (25, 80797025), (95, 21262375), (125, 16159405), (475, 4252475), (625, 3231881), (2375, 850495), (11875, 170099)]