81478545

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{1931}}^1$

素因数の和:2065

約数の個数: 32

約数和(自身を含む): 136321920

約数和(自身を除く): 54843375

約数列:

[1, 3, 5, 15, 29, 87, 97, 145, 291, 435, 485, 1455, 1931, 2813, 5793, 8439, 9655, 14065, 28965, 42195, 55999, 167997, 187307, 279995, 561921, 839985, 936535, 2809605, 5431903, 16295709, 27159515, 81478545]

約数ペア:

[(1, 81478545), (3, 27159515), (5, 16295709), (15, 5431903), (29, 2809605), (87, 936535), (97, 839985), (145, 561921), (291, 279995), (435, 187307), (485, 167997), (1455, 55999), (1931, 42195), (2813, 28965), (5793, 14065), (8439, 9655)]