211628140

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{42157}}^1$

素因数の和:42417

約数の個数: 24

約数和(自身を含む): 446200272

約数和(自身を除く): 234572132

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 42157, 84314, 168628, 210785, 421570, 843140, 10581407, 21162814, 42325628, 52907035, 105814070, 211628140]

約数ペア:

[(1, 211628140), (2, 105814070), (4, 52907035), (5, 42325628), (10, 21162814), (20, 10581407), (251, 843140), (502, 421570), (1004, 210785), (1255, 168628), (2510, 84314), (5020, 42157)]