20989570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{13037}}^1$

素因数の和:13074

約数の個数: 32

約数和(自身を含む): 45059328

約数和(自身を除く): 24069758

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 13037, 26074, 65185, 91259, 130370, 182518, 299851, 456295, 599702, 912590, 1499255, 2098957, 2998510, 4197914, 10494785, 20989570]

約数ペア:

[(1, 20989570), (2, 10494785), (5, 4197914), (7, 2998510), (10, 2098957), (14, 1499255), (23, 912590), (35, 599702), (46, 456295), (70, 299851), (115, 182518), (161, 130370), (230, 91259), (322, 65185), (805, 26074), (1610, 13037)]