20740300984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{4639}}^1\times {\mathrm{42989}}^1$

素因数の和:47647

約数の個数: 32

約数和(自身を含む): 41889456000

約数和(自身を除く): 21149155016

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 4639, 9278, 18556, 37112, 42989, 60307, 85978, 120614, 171956, 241228, 343912, 482456, 558857, 1117714, 2235428, 4470856, 199425971, 398851942, 797703884, 1595407768, 2592537623, 5185075246, 10370150492, 20740300984]

約数ペア:

[(1, 20740300984), (2, 10370150492), (4, 5185075246), (8, 2592537623), (13, 1595407768), (26, 797703884), (52, 398851942), (104, 199425971), (4639, 4470856), (9278, 2235428), (18556, 1117714), (37112, 558857), (42989, 482456), (60307, 343912), (85978, 241228), (120614, 171956)]