5020000

素因数分解:

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

素因数の和:281

約数の個数: 60

約数和(自身を含む): 12399156

約数和(自身を除く): 7379156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 251, 400, 500, 502, 625, 800, 1000, 1004, 1250, 1255, 2000, 2008, 2500, 2510, 4000, 4016, 5000, 5020, 6275, 8032, 10000, 10040, 12550, 20000, 20080, 25100, 31375, 40160, 50200, 62750, 100400, 125500, 156875, 200800, 251000, 313750, 502000, 627500, 1004000, 1255000, 2510000, 5020000]

約数ペア:

[(1, 5020000), (2, 2510000), (4, 1255000), (5, 1004000), (8, 627500), (10, 502000), (16, 313750), (20, 251000), (25, 200800), (32, 156875), (40, 125500), (50, 100400), (80, 62750), (100, 50200), (125, 40160), (160, 31375), (200, 25100), (250, 20080), (251, 20000), (400, 12550), (500, 10040), (502, 10000), (625, 8032), (800, 6275), (1000, 5020), (1004, 5000), (1250, 4016), (1255, 4000), (2000, 2510), (2008, 2500)]