831180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1979}}^1$

素因数の和:1998

約数の個数: 48

約数和(自身を含む): 2661120

約数和(自身を除く): 1829940

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, 1979, 3958, 5937, 7916, 9895, 11874, 13853, 19790, 23748, 27706, 29685, 39580, 41559, 55412, 59370, 69265, 83118, 118740, 138530, 166236, 207795, 277060, 415590, 831180]

約数ペア:

[(1, 831180), (2, 415590), (3, 277060), (4, 207795), (5, 166236), (6, 138530), (7, 118740), (10, 83118), (12, 69265), (14, 59370), (15, 55412), (20, 41559), (21, 39580), (28, 29685), (30, 27706), (35, 23748), (42, 19790), (60, 13853), (70, 11874), (84, 9895), (105, 7916), (140, 5937), (210, 3958), (420, 1979)]