188702980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{86561}}^1$

素因数の和:86679

約数の個数: 24

約数和(自身を含む): 399916440

約数和(自身を除く): 211213460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 86561, 173122, 346244, 432805, 865610, 1731220, 9435149, 18870298, 37740596, 47175745, 94351490, 188702980]

約数ペア:

[(1, 188702980), (2, 94351490), (4, 47175745), (5, 37740596), (10, 18870298), (20, 9435149), (109, 1731220), (218, 865610), (436, 432805), (545, 346244), (1090, 173122), (2180, 86561)]