78449702920

素因数分解:

$2^3\times 5^1\times {\mathrm{16691}}^1\times {\mathrm{117503}}^1$

素因数の和:134205

約数の個数: 32

約数和(自身を含む): 176523909120

約数和(自身を除く): 98074206200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16691, 33382, 66764, 83455, 117503, 133528, 166910, 235006, 333820, 470012, 587515, 667640, 940024, 1175030, 2350060, 4700120, 1961242573, 3922485146, 7844970292, 9806212865, 15689940584, 19612425730, 39224851460, 78449702920]

約数ペア:

[(1, 78449702920), (2, 39224851460), (4, 19612425730), (5, 15689940584), (8, 9806212865), (10, 7844970292), (20, 3922485146), (40, 1961242573), (16691, 4700120), (33382, 2350060), (66764, 1175030), (83455, 940024), (117503, 667640), (133528, 587515), (166910, 470012), (235006, 333820)]