421805500

素因数分解:

$2^2\times 5^3\times {\mathrm{251}}^1\times {\mathrm{3361}}^1$

素因数の和:3631

約数の個数: 48

約数和(自身を含む): 925168608

約数和(自身を除く): 503363108

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 251, 500, 502, 1004, 1255, 2510, 3361, 5020, 6275, 6722, 12550, 13444, 16805, 25100, 31375, 33610, 62750, 67220, 84025, 125500, 168050, 336100, 420125, 840250, 843611, 1680500, 1687222, 3374444, 4218055, 8436110, 16872220, 21090275, 42180550, 84361100, 105451375, 210902750, 421805500]

約数ペア:

[(1, 421805500), (2, 210902750), (4, 105451375), (5, 84361100), (10, 42180550), (20, 21090275), (25, 16872220), (50, 8436110), (100, 4218055), (125, 3374444), (250, 1687222), (251, 1680500), (500, 843611), (502, 840250), (1004, 420125), (1255, 336100), (2510, 168050), (3361, 125500), (5020, 84025), (6275, 67220), (6722, 62750), (12550, 33610), (13444, 31375), (16805, 25100)]