81405960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678383}}^1$

素因数の和:678397

約数の個数: 32

約数和(自身を含む): 244218240

約数和(自身を除く): 162812280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678383, 1356766, 2035149, 2713532, 3391915, 4070298, 5427064, 6783830, 8140596, 10175745, 13567660, 16281192, 20351490, 27135320, 40702980, 81405960]

約数ペア:

[(1, 81405960), (2, 40702980), (3, 27135320), (4, 20351490), (5, 16281192), (6, 13567660), (8, 10175745), (10, 8140596), (12, 6783830), (15, 5427064), (20, 4070298), (24, 3391915), (30, 2713532), (40, 2035149), (60, 1356766), (120, 678383)]