253479040

素因数分解:

$2^7\times 5^1\times {\mathrm{396061}}^1$

素因数の和:396080

約数の個数: 32

約数和(自身を含む): 605974860

約数和(自身を除く): 352495820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 396061, 792122, 1584244, 1980305, 3168488, 3960610, 6336976, 7921220, 12673952, 15842440, 25347904, 31684880, 50695808, 63369760, 126739520, 253479040]

約数ペア:

[(1, 253479040), (2, 126739520), (4, 63369760), (5, 50695808), (8, 31684880), (10, 25347904), (16, 15842440), (20, 12673952), (32, 7921220), (40, 6336976), (64, 3960610), (80, 3168488), (128, 1980305), (160, 1584244), (320, 792122), (640, 396061)]