20500040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46591}}^1$

素因数の和:46613

約数の個数: 32

約数和(自身を含む): 50319360

約数和(自身を除く): 29819320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46591, 93182, 186364, 232955, 372728, 465910, 512501, 931820, 1025002, 1863640, 2050004, 2562505, 4100008, 5125010, 10250020, 20500040]

約数ペア:

[(1, 20500040), (2, 10250020), (4, 5125010), (5, 4100008), (8, 2562505), (10, 2050004), (11, 1863640), (20, 1025002), (22, 931820), (40, 512501), (44, 465910), (55, 372728), (88, 232955), (110, 186364), (220, 93182), (440, 46591)]