40180460

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3947}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 84566160

約数和(自身を除く): 44385700

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 3947, 5090, 7894, 10180, 15788, 19735, 39470, 78940, 2009023, 4018046, 8036092, 10045115, 20090230, 40180460]

約数ペア:

[(1, 40180460), (2, 20090230), (4, 10045115), (5, 8036092), (10, 4018046), (20, 2009023), (509, 78940), (1018, 39470), (2036, 19735), (2545, 15788), (3947, 10180), (5090, 7894)]