1100000020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1122449}}^1$

素因数の和:1122472

約数の個数: 36

約数和(自身を含む): 2687145300

約数和(自身を除く): 1587145280

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1122449, 2244898, 4489796, 5612245, 7857143, 11224490, 15714286, 22448980, 31428572, 39285715, 55000001, 78571430, 110000002, 157142860, 220000004, 275000005, 550000010, 1100000020]

約数ペア:

[(1, 1100000020), (2, 550000010), (4, 275000005), (5, 220000004), (7, 157142860), (10, 110000002), (14, 78571430), (20, 55000001), (28, 39285715), (35, 31428572), (49, 22448980), (70, 15714286), (98, 11224490), (140, 7857143), (196, 5612245), (245, 4489796), (490, 2244898), (980, 1122449)]