388640470

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{39217}}^1$

素因数の和:40215

約数の個数: 16

約数和(自身を含む): 700276608

約数和(自身を除く): 311636138

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 39217, 78434, 196085, 392170, 38864047, 77728094, 194320235, 388640470]

約数ペア:

[(1, 388640470), (2, 194320235), (5, 77728094), (10, 38864047), (991, 392170), (1982, 196085), (4955, 78434), (9910, 39217)]