80691880

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6571}}^1$

素因数の和:6889

約数の個数: 32

約数和(自身を含む): 182175840

約数和(自身を除く): 101483960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 6571, 12280, 13142, 26284, 32855, 52568, 65710, 131420, 262840, 2017297, 4034594, 8069188, 10086485, 16138376, 20172970, 40345940, 80691880]

約数ペア:

[(1, 80691880), (2, 40345940), (4, 20172970), (5, 16138376), (8, 10086485), (10, 8069188), (20, 4034594), (40, 2017297), (307, 262840), (614, 131420), (1228, 65710), (1535, 52568), (2456, 32855), (3070, 26284), (6140, 13142), (6571, 12280)]