390316580

素因数分解:

$2^2\times 5^1\times {\mathrm{5189}}^1\times {\mathrm{3761}}^1$

素因数の和:8959

約数の個数: 24

約数和(自身を含む): 820040760

約数和(自身を除く): 429724180

約数列:

[1, 2, 4, 5, 10, 20, 3761, 5189, 7522, 10378, 15044, 18805, 20756, 25945, 37610, 51890, 75220, 103780, 19515829, 39031658, 78063316, 97579145, 195158290, 390316580]

約数ペア:

[(1, 390316580), (2, 195158290), (4, 97579145), (5, 78063316), (10, 39031658), (20, 19515829), (3761, 103780), (5189, 75220), (7522, 51890), (10378, 37610), (15044, 25945), (18805, 20756)]