7971180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18979}}^1$

素因数の和:18998

約数の個数: 48

約数和(自身を含む): 25509120

約数和(自身を除く): 17537940

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, 18979, 37958, 56937, 75916, 94895, 113874, 132853, 189790, 227748, 265706, 284685, 379580, 398559, 531412, 569370, 664265, 797118, 1138740, 1328530, 1594236, 1992795, 2657060, 3985590, 7971180]

約数ペア:

[(1, 7971180), (2, 3985590), (3, 2657060), (4, 1992795), (5, 1594236), (6, 1328530), (7, 1138740), (10, 797118), (12, 664265), (14, 569370), (15, 531412), (20, 398559), (21, 379580), (28, 284685), (30, 265706), (35, 227748), (42, 189790), (60, 132853), (70, 113874), (84, 94895), (105, 75916), (140, 56937), (210, 37958), (420, 18979)]