2510000

素因数分解:

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

素因数の和:279

約数の個数: 50

約数和(自身を含む): 6101172

約数和(自身を除く): 3591172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 251, 400, 500, 502, 625, 1000, 1004, 1250, 1255, 2000, 2008, 2500, 2510, 4016, 5000, 5020, 6275, 10000, 10040, 12550, 20080, 25100, 31375, 50200, 62750, 100400, 125500, 156875, 251000, 313750, 502000, 627500, 1255000, 2510000]

約数ペア:

[(1, 2510000), (2, 1255000), (4, 627500), (5, 502000), (8, 313750), (10, 251000), (16, 156875), (20, 125500), (25, 100400), (40, 62750), (50, 50200), (80, 31375), (100, 25100), (125, 20080), (200, 12550), (250, 10040), (251, 10000), (400, 6275), (500, 5020), (502, 5000), (625, 4016), (1000, 2510), (1004, 2500), (1250, 2008), (1255, 2000)]