19800616

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1009}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 40723200

約数和(自身を除く): 20922584

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 223, 446, 892, 1009, 1784, 2018, 2453, 4036, 4906, 8072, 9812, 11099, 19624, 22198, 44396, 88792, 225007, 450014, 900028, 1800056, 2475077, 4950154, 9900308, 19800616]

約数ペア:

[(1, 19800616), (2, 9900308), (4, 4950154), (8, 2475077), (11, 1800056), (22, 900028), (44, 450014), (88, 225007), (223, 88792), (446, 44396), (892, 22198), (1009, 19624), (1784, 11099), (2018, 9812), (2453, 8072), (4036, 4906)]