20090979620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{273943}}^1$

素因数の和:274164

約数の個数: 48

約数和(自身を含む): 44641914240

約数和(自身を除く): 24550934620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 193, 380, 386, 772, 965, 1930, 3667, 3860, 7334, 14668, 18335, 36670, 73340, 273943, 547886, 1095772, 1369715, 2739430, 5204917, 5478860, 10409834, 20819668, 26024585, 52049170, 52870999, 104098340, 105741998, 211483996, 264354995, 528709990, 1004548981, 1057419980, 2009097962, 4018195924, 5022744905, 10045489810, 20090979620]

約数ペア:

[(1, 20090979620), (2, 10045489810), (4, 5022744905), (5, 4018195924), (10, 2009097962), (19, 1057419980), (20, 1004548981), (38, 528709990), (76, 264354995), (95, 211483996), (190, 105741998), (193, 104098340), (380, 52870999), (386, 52049170), (772, 26024585), (965, 20819668), (1930, 10409834), (3667, 5478860), (3860, 5204917), (7334, 2739430), (14668, 1369715), (18335, 1095772), (36670, 547886), (73340, 273943)]