20177185

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 29053440

約数和(自身を除く): 8876255

約数列:

[1, 5, 7, 29, 35, 103, 145, 193, 203, 515, 721, 965, 1015, 1351, 2987, 3605, 5597, 6755, 14935, 19879, 20909, 27985, 39179, 99395, 104545, 139153, 195895, 576491, 695765, 2882455, 4035437, 20177185]

約数ペア:

[(1, 20177185), (5, 4035437), (7, 2882455), (29, 695765), (35, 576491), (103, 195895), (145, 139153), (193, 104545), (203, 99395), (515, 39179), (721, 27985), (965, 20909), (1015, 19879), (1351, 14935), (2987, 6755), (3605, 5597)]