1891591940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{190301}}^1$

素因数の和:190388

約数の個数: 48

約数和(自身を含む): 4603785984

約数和(自身を除く): 2712194044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 190301, 380602, 761204, 951505, 1332107, 1903010, 2664214, 3806020, 5328428, 6660535, 13321070, 13511371, 26642140, 27022742, 54045484, 67556855, 94579597, 135113710, 189159194, 270227420, 378318388, 472897985, 945795970, 1891591940]

約数ペア:

[(1, 1891591940), (2, 945795970), (4, 472897985), (5, 378318388), (7, 270227420), (10, 189159194), (14, 135113710), (20, 94579597), (28, 67556855), (35, 54045484), (70, 27022742), (71, 26642140), (140, 13511371), (142, 13321070), (284, 6660535), (355, 5328428), (497, 3806020), (710, 2664214), (994, 1903010), (1420, 1332107), (1988, 951505), (2485, 761204), (4970, 380602), (9940, 190301)]