2131720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 4843800

約数和(自身を除く): 2712080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 389, 548, 685, 778, 1096, 1370, 1556, 1945, 2740, 3112, 3890, 5480, 7780, 15560, 53293, 106586, 213172, 266465, 426344, 532930, 1065860, 2131720]

約数ペア:

[(1, 2131720), (2, 1065860), (4, 532930), (5, 426344), (8, 266465), (10, 213172), (20, 106586), (40, 53293), (137, 15560), (274, 7780), (389, 5480), (548, 3890), (685, 3112), (778, 2740), (1096, 1945), (1370, 1556)]