2783239640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{353203}}^1$

素因数の和:353411

約数の個数: 32

約数和(自身を含む): 6294095280

約数和(自身を除く): 3510855640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 353203, 706406, 1412812, 1766015, 2825624, 3532030, 7064060, 14128120, 69580991, 139161982, 278323964, 347904955, 556647928, 695809910, 1391619820, 2783239640]

約数ペア:

[(1, 2783239640), (2, 1391619820), (4, 695809910), (5, 556647928), (8, 347904955), (10, 278323964), (20, 139161982), (40, 69580991), (197, 14128120), (394, 7064060), (788, 3532030), (985, 2825624), (1576, 1766015), (1970, 1412812), (3940, 706406), (7880, 353203)]