855542840

素因数分解:

$2^3\times 5^1\times {\mathrm{3931}}^1\times {\mathrm{5441}}^1$

素因数の和:9383

約数の個数: 32

約数和(自身を含む): 1925814960

約数和(自身を除く): 1070272120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3931, 5441, 7862, 10882, 15724, 19655, 21764, 27205, 31448, 39310, 43528, 54410, 78620, 108820, 157240, 217640, 21388571, 42777142, 85554284, 106942855, 171108568, 213885710, 427771420, 855542840]

約数ペア:

[(1, 855542840), (2, 427771420), (4, 213885710), (5, 171108568), (8, 106942855), (10, 85554284), (20, 42777142), (40, 21388571), (3931, 217640), (5441, 157240), (7862, 108820), (10882, 78620), (15724, 54410), (19655, 43528), (21764, 39310), (27205, 31448)]