209034420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{497701}}^1$

素因数の和:497720

約数の個数: 48

約数和(自身を含む): 668911488

約数和(自身を除く): 459877068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 497701, 995402, 1493103, 1990804, 2488505, 2986206, 3483907, 4977010, 5972412, 6967814, 7465515, 9954020, 10451721, 13935628, 14931030, 17419535, 20903442, 29862060, 34839070, 41806884, 52258605, 69678140, 104517210, 209034420]

約数ペア:

[(1, 209034420), (2, 104517210), (3, 69678140), (4, 52258605), (5, 41806884), (6, 34839070), (7, 29862060), (10, 20903442), (12, 17419535), (14, 14931030), (15, 13935628), (20, 10451721), (21, 9954020), (28, 7465515), (30, 6967814), (35, 5972412), (42, 4977010), (60, 3483907), (70, 2986206), (84, 2488505), (105, 1990804), (140, 1493103), (210, 995402), (420, 497701)]