84451880

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2161}}^1$

素因数の和:3149

約数の個数: 32

約数和(自身を含む): 190299240

約数和(自身を除く): 105847360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 2161, 3908, 4322, 4885, 7816, 8644, 9770, 10805, 17288, 19540, 21610, 39080, 43220, 86440, 2111297, 4222594, 8445188, 10556485, 16890376, 21112970, 42225940, 84451880]

約数ペア:

[(1, 84451880), (2, 42225940), (4, 21112970), (5, 16890376), (8, 10556485), (10, 8445188), (20, 4222594), (40, 2111297), (977, 86440), (1954, 43220), (2161, 39080), (3908, 21610), (4322, 19540), (4885, 17288), (7816, 10805), (8644, 9770)]