25779180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61379}}^1$

素因数の和:61398

約数の個数: 48

約数和(自身を含む): 82494720

約数和(自身を除く): 56715540

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, 61379, 122758, 184137, 245516, 306895, 368274, 429653, 613790, 736548, 859306, 920685, 1227580, 1288959, 1718612, 1841370, 2148265, 2577918, 3682740, 4296530, 5155836, 6444795, 8593060, 12889590, 25779180]

約数ペア:

[(1, 25779180), (2, 12889590), (3, 8593060), (4, 6444795), (5, 5155836), (6, 4296530), (7, 3682740), (10, 2577918), (12, 2148265), (14, 1841370), (15, 1718612), (20, 1288959), (21, 1227580), (28, 920685), (30, 859306), (35, 736548), (42, 613790), (60, 429653), (70, 368274), (84, 306895), (105, 245516), (140, 184137), (210, 122758), (420, 61379)]