20455628

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3407}}^1$

素因数の和:3509

約数の個数: 24

約数和(自身を含む): 38169600

約数和(自身を除く): 17713972

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3407, 6004, 6814, 13628, 64733, 129466, 258932, 269153, 538306, 1076612, 5113907, 10227814, 20455628]

約数ペア:

[(1, 20455628), (2, 10227814), (4, 5113907), (19, 1076612), (38, 538306), (76, 269153), (79, 258932), (158, 129466), (316, 64733), (1501, 13628), (3002, 6814), (3407, 6004)]