276780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{659}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 887040

約数和(自身を除く): 610260

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, 659, 1318, 1977, 2636, 3295, 3954, 4613, 6590, 7908, 9226, 9885, 13180, 13839, 18452, 19770, 23065, 27678, 39540, 46130, 55356, 69195, 92260, 138390, 276780]

約数ペア:

[(1, 276780), (2, 138390), (3, 92260), (4, 69195), (5, 55356), (6, 46130), (7, 39540), (10, 27678), (12, 23065), (14, 19770), (15, 18452), (20, 13839), (21, 13180), (28, 9885), (30, 9226), (35, 7908), (42, 6590), (60, 4613), (70, 3954), (84, 3295), (105, 2636), (140, 1977), (210, 1318), (420, 659)]