209939580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{388777}}^1$

素因数の和:388795

約数の個数: 48

約数和(自身を含む): 653147040

約数和(自身を除く): 443207460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 388777, 777554, 1166331, 1555108, 1943885, 2332662, 3498993, 3887770, 4665324, 5831655, 6997986, 7775540, 10496979, 11663310, 13995972, 17494965, 20993958, 23326620, 34989930, 41987916, 52484895, 69979860, 104969790, 209939580]

約数ペア:

[(1, 209939580), (2, 104969790), (3, 69979860), (4, 52484895), (5, 41987916), (6, 34989930), (9, 23326620), (10, 20993958), (12, 17494965), (15, 13995972), (18, 11663310), (20, 10496979), (27, 7775540), (30, 6997986), (36, 5831655), (45, 4665324), (54, 3887770), (60, 3498993), (90, 2332662), (108, 1943885), (135, 1555108), (180, 1166331), (270, 777554), (540, 388777)]