19785290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{12289}}^1$

素因数の和:12326

約数の個数: 32

約数和(自身を含む): 42474240

約数和(自身を除く): 22688950

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 12289, 24578, 61445, 86023, 122890, 172046, 282647, 430115, 565294, 860230, 1413235, 1978529, 2826470, 3957058, 9892645, 19785290]

約数ペア:

[(1, 19785290), (2, 9892645), (5, 3957058), (7, 2826470), (10, 1978529), (14, 1413235), (23, 860230), (35, 565294), (46, 430115), (70, 282647), (115, 172046), (161, 122890), (230, 86023), (322, 61445), (805, 24578), (1610, 12289)]