381365404

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{97987}}^1$

素因数の和:98137

約数の個数: 24

約数和(自身を含む): 768225920

約数和(自身を除く): 386860516

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 97987, 195974, 391948, 685909, 1371818, 2743636, 13620193, 27240386, 54480772, 95341351, 190682702, 381365404]

約数ペア:

[(1, 381365404), (2, 190682702), (4, 95341351), (7, 54480772), (14, 27240386), (28, 13620193), (139, 2743636), (278, 1371818), (556, 685909), (973, 391948), (1946, 195974), (3892, 97987)]