20161769840

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1923833}}^1$

素因数の和:1923977

約数の個数: 40

約数和(自身を含む): 47233972368

約数和(自身を除く): 27072202528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 1923833, 3847666, 7695332, 9619165, 15390664, 19238330, 30781328, 38476660, 76953320, 153906640, 252022123, 504044246, 1008088492, 1260110615, 2016176984, 2520221230, 4032353968, 5040442460, 10080884920, 20161769840]

約数ペア:

[(1, 20161769840), (2, 10080884920), (4, 5040442460), (5, 4032353968), (8, 2520221230), (10, 2016176984), (16, 1260110615), (20, 1008088492), (40, 504044246), (80, 252022123), (131, 153906640), (262, 76953320), (524, 38476660), (655, 30781328), (1048, 19238330), (1310, 15390664), (2096, 9619165), (2620, 7695332), (5240, 3847666), (10480, 1923833)]