155960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{557}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 401760

約数和(自身を除く): 245800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 557, 1114, 2228, 2785, 3899, 4456, 5570, 7798, 11140, 15596, 19495, 22280, 31192, 38990, 77980, 155960]

約数ペア:

[(1, 155960), (2, 77980), (4, 38990), (5, 31192), (7, 22280), (8, 19495), (10, 15596), (14, 11140), (20, 7798), (28, 5570), (35, 4456), (40, 3899), (56, 2785), (70, 2228), (140, 1114), (280, 557)]