15704863640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{997}}^1\times {\mathrm{1999}}^1$

素因数の和:3204

約数の個数: 64

約数和(自身を含む): 35568720000

約数和(自身を除く): 19863856360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 997, 1576, 1970, 1994, 1999, 3940, 3988, 3998, 4985, 7880, 7976, 7996, 9970, 9995, 15992, 19940, 19990, 39880, 39980, 79960, 196409, 392818, 393803, 785636, 787606, 982045, 1571272, 1575212, 1964090, 1969015, 1993003, 3150424, 3928180, 3938030, 3986006, 7856360, 7876060, 7972012, 9965015, 15752120, 15944024, 19930030, 39860060, 79720120, 392621591, 785243182, 1570486364, 1963107955, 3140972728, 3926215910, 7852431820, 15704863640]

約数ペア:

[(1, 15704863640), (2, 7852431820), (4, 3926215910), (5, 3140972728), (8, 1963107955), (10, 1570486364), (20, 785243182), (40, 392621591), (197, 79720120), (394, 39860060), (788, 19930030), (985, 15944024), (997, 15752120), (1576, 9965015), (1970, 7972012), (1994, 7876060), (1999, 7856360), (3940, 3986006), (3988, 3938030), (3998, 3928180), (4985, 3150424), (7880, 1993003), (7976, 1969015), (7996, 1964090), (9970, 1575212), (9995, 1571272), (15992, 982045), (19940, 787606), (19990, 785636), (39880, 393803), (39980, 392818), (79960, 196409)]