80721968

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{95191}}^1$

素因数の和:95252

約数の個数: 20

約数和(自身を含む): 159351408

約数和(自身を除く): 78629440

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 95191, 190382, 380764, 761528, 1523056, 5045123, 10090246, 20180492, 40360984, 80721968]

約数ペア:

[(1, 80721968), (2, 40360984), (4, 20180492), (8, 10090246), (16, 5045123), (53, 1523056), (106, 761528), (212, 380764), (424, 190382), (848, 95191)]