218702980

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{19423}}^1$

素因数の和:19995

約数の個数: 24

約数和(自身を含む): 460115712

約数和(自身を除く): 241412732

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 2252, 2815, 5630, 11260, 19423, 38846, 77692, 97115, 194230, 388460, 10935149, 21870298, 43740596, 54675745, 109351490, 218702980]

約数ペア:

[(1, 218702980), (2, 109351490), (4, 54675745), (5, 43740596), (10, 21870298), (20, 10935149), (563, 388460), (1126, 194230), (2252, 97115), (2815, 77692), (5630, 38846), (11260, 19423)]