25757020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 56137536

約数和(自身を除く): 30380516

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 311, 404, 410, 505, 622, 820, 1010, 1244, 1555, 2020, 3110, 4141, 6220, 8282, 12751, 16564, 20705, 25502, 31411, 41410, 51004, 62822, 63755, 82820, 125644, 127510, 157055, 255020, 314110, 628220, 1287851, 2575702, 5151404, 6439255, 12878510, 25757020]

約数ペア:

[(1, 25757020), (2, 12878510), (4, 6439255), (5, 5151404), (10, 2575702), (20, 1287851), (41, 628220), (82, 314110), (101, 255020), (164, 157055), (202, 127510), (205, 125644), (311, 82820), (404, 63755), (410, 62822), (505, 51004), (622, 41410), (820, 31411), (1010, 25502), (1244, 20705), (1555, 16564), (2020, 12751), (3110, 8282), (4141, 6220)]