502000

素因数分解:

$2^4\times 5^3\times {\mathrm{251}}^1$

素因数の和:274

約数の個数: 40

約数和(自身を含む): 1218672

約数和(自身を除く): 716672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 251, 400, 500, 502, 1000, 1004, 1255, 2000, 2008, 2510, 4016, 5020, 6275, 10040, 12550, 20080, 25100, 31375, 50200, 62750, 100400, 125500, 251000, 502000]

約数ペア:

[(1, 502000), (2, 251000), (4, 125500), (5, 100400), (8, 62750), (10, 50200), (16, 31375), (20, 25100), (25, 20080), (40, 12550), (50, 10040), (80, 6275), (100, 5020), (125, 4016), (200, 2510), (250, 2008), (251, 2000), (400, 1255), (500, 1004), (502, 1000)]