16687220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{751}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 38658816

約数和(自身を除く): 21971596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 751, 1010, 1111, 1502, 2020, 2222, 3004, 3755, 4444, 5555, 7510, 8261, 11110, 15020, 16522, 22220, 33044, 41305, 75851, 82610, 151702, 165220, 303404, 379255, 758510, 834361, 1517020, 1668722, 3337444, 4171805, 8343610, 16687220]

約数ペア:

[(1, 16687220), (2, 8343610), (4, 4171805), (5, 3337444), (10, 1668722), (11, 1517020), (20, 834361), (22, 758510), (44, 379255), (55, 303404), (101, 165220), (110, 151702), (202, 82610), (220, 75851), (404, 41305), (505, 33044), (751, 22220), (1010, 16522), (1111, 15020), (1502, 11110), (2020, 8261), (2222, 7510), (3004, 5555), (3755, 4444)]