209205540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1162253}}^1$

素因数の和:1162268

約数の個数: 36

約数和(自身を含む): 634590684

約数和(自身を除く): 425385144

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1162253, 2324506, 3486759, 4649012, 5811265, 6973518, 10460277, 11622530, 13947036, 17433795, 20920554, 23245060, 34867590, 41841108, 52301385, 69735180, 104602770, 209205540]

約数ペア:

[(1, 209205540), (2, 104602770), (3, 69735180), (4, 52301385), (5, 41841108), (6, 34867590), (9, 23245060), (10, 20920554), (12, 17433795), (15, 13947036), (18, 11622530), (20, 10460277), (30, 6973518), (36, 5811265), (45, 4649012), (60, 3486759), (90, 2324506), (180, 1162253)]