80642840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{106109}}^1$

素因数の和:106139

約数の個数: 32

約数和(自身を含む): 190998000

約数和(自身を除く): 110355160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 106109, 212218, 424436, 530545, 848872, 1061090, 2016071, 2122180, 4032142, 4244360, 8064284, 10080355, 16128568, 20160710, 40321420, 80642840]

約数ペア:

[(1, 80642840), (2, 40321420), (4, 20160710), (5, 16128568), (8, 10080355), (10, 8064284), (19, 4244360), (20, 4032142), (38, 2122180), (40, 2016071), (76, 1061090), (95, 848872), (152, 530545), (190, 424436), (380, 212218), (760, 106109)]