388804078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1\times {\mathrm{997}}^1$

素因数の和:1348

約数の個数: 32

約数和(自身を含む): 642823776

約数和(自身を除く): 254019698

約数列:

[1, 2, 13, 26, 53, 106, 283, 566, 689, 997, 1378, 1994, 3679, 7358, 12961, 14999, 25922, 29998, 52841, 105682, 194987, 282151, 389974, 564302, 686933, 1373866, 3667963, 7335926, 14954003, 29908006, 194402039, 388804078]

約数ペア:

[(1, 388804078), (2, 194402039), (13, 29908006), (26, 14954003), (53, 7335926), (106, 3667963), (283, 1373866), (566, 686933), (689, 564302), (997, 389974), (1378, 282151), (1994, 194987), (3679, 105682), (7358, 52841), (12961, 29998), (14999, 25922)]