20998260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116657}}^1$

素因数の和:116672

約数の個数: 36

約数和(自身を含む): 63695268

約数和(自身を除く): 42697008

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116657, 233314, 349971, 466628, 583285, 699942, 1049913, 1166570, 1399884, 1749855, 2099826, 2333140, 3499710, 4199652, 5249565, 6999420, 10499130, 20998260]

約数ペア:

[(1, 20998260), (2, 10499130), (3, 6999420), (4, 5249565), (5, 4199652), (6, 3499710), (9, 2333140), (10, 2099826), (12, 1749855), (15, 1399884), (18, 1166570), (20, 1049913), (30, 699942), (36, 583285), (45, 466628), (60, 349971), (90, 233314), (180, 116657)]