202180040

素因数分解:

$2^3\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{2791}}^1$

素因数の和:4613

約数の個数: 32

約数和(自身を含む): 455319360

約数和(自身を除く): 253139320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1811, 2791, 3622, 5582, 7244, 9055, 11164, 13955, 14488, 18110, 22328, 27910, 36220, 55820, 72440, 111640, 5054501, 10109002, 20218004, 25272505, 40436008, 50545010, 101090020, 202180040]

約数ペア:

[(1, 202180040), (2, 101090020), (4, 50545010), (5, 40436008), (8, 25272505), (10, 20218004), (20, 10109002), (40, 5054501), (1811, 111640), (2791, 72440), (3622, 55820), (5582, 36220), (7244, 27910), (9055, 22328), (11164, 18110), (13955, 14488)]