87678780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{208759}}^1$

素因数の和:208778

約数の個数: 48

約数和(自身を含む): 280573440

約数和(自身を除く): 192894660

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, 208759, 417518, 626277, 835036, 1043795, 1252554, 1461313, 2087590, 2505108, 2922626, 3131385, 4175180, 4383939, 5845252, 6262770, 7306565, 8767878, 12525540, 14613130, 17535756, 21919695, 29226260, 43839390, 87678780]

約数ペア:

[(1, 87678780), (2, 43839390), (3, 29226260), (4, 21919695), (5, 17535756), (6, 14613130), (7, 12525540), (10, 8767878), (12, 7306565), (14, 6262770), (15, 5845252), (20, 4383939), (21, 4175180), (28, 3131385), (30, 2922626), (35, 2505108), (42, 2087590), (60, 1461313), (70, 1252554), (84, 1043795), (105, 835036), (140, 626277), (210, 417518), (420, 208759)]