80569640

素因数分解:

$2^3\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{1553}}^1$

素因数の和:2861

約数の個数: 32

約数和(自身を含む): 181538280

約数和(自身を除く): 100968640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1297, 1553, 2594, 3106, 5188, 6212, 6485, 7765, 10376, 12424, 12970, 15530, 25940, 31060, 51880, 62120, 2014241, 4028482, 8056964, 10071205, 16113928, 20142410, 40284820, 80569640]

約数ペア:

[(1, 80569640), (2, 40284820), (4, 20142410), (5, 16113928), (8, 10071205), (10, 8056964), (20, 4028482), (40, 2014241), (1297, 62120), (1553, 51880), (2594, 31060), (3106, 25940), (5188, 15530), (6212, 12970), (6485, 12424), (7765, 10376)]